update UI asynchronously

editor

.classpath

@@ -1,17 +1,25 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<classpath>
-	<classpathentry kind="src" path="src/test"/>
-	<classpathentry kind="src" path="src/main/engine"/>
-	<classpathentry kind="src" path="src/main/gui"/>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
-	<classpathentry kind="lib" path="lib/dbunit-2.4.4.jar"/>
-	<classpathentry kind="lib" path="lib/junit-4.4.jar"/>
-	<classpathentry kind="lib" path="lib/log4j.jar"/>
-	<classpathentry kind="lib" path="lib/prefuse.jar" />
-	<classpathentry kind="lib" path="lib/sdoc-0.5.0-beta.jar" />
-	<classpathentry kind="lib" path="lib/args4j.jar"/>
-	<classpathentry kind="lib" path="config"/>
-	<classpathentry kind="lib" path="lib/jsqlparser-1.1.jar" />
-	<classpathentry kind="lib" path="lib/tablefilter-swing-5.3.1.jar"/>
-	<classpathentry kind="output" path="bin"/>
-</classpath>
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src/test"/>
+	<classpathentry kind="src" path="src/main/engine"/>
+	<classpathentry kind="src" path="src/main/gui"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER">
+		<attributes>
+			<attribute name="module" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="lib" path="lib/dbunit-2.4.4.jar"/>
+	<classpathentry kind="lib" path="lib/junit-4.4.jar"/>
+	<classpathentry kind="lib" path="lib/log4j.jar"/>
+	<classpathentry kind="lib" path="lib/prefuse.jar"/>
+	<classpathentry kind="lib" path="lib/sdoc-0.5.0-beta.jar"/>
+	<classpathentry kind="lib" path="lib/args4j.jar"/>
+	<classpathentry kind="lib" path="config"/>
+	<classpathentry kind="lib" path="lib/jsqlparser-1.1.jar"/>
+	<classpathentry kind="lib" path="lib/tablefilter-swing-5.3.1.jar"/>
+	<classpathentry kind="lib" path="lib/jaxb-api-2.3.0-b170201.1204.jar"/>
+	<classpathentry kind="lib" path="lib/jaxb-core-2.3.0-b170127.1453.jar"/>
+	<classpathentry kind="lib" path="lib/jaxb-impl-2.3.0-b170127.1453.jar"/>
+	<classpathentry kind="lib" path="lib/activation-1.0.2.jar"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

driverlist.csv

@@ -12,8 +12,8 @@ Informix Dynamic Server;jdbc:informix-sqli://<HOST>:<PORT>/<DB>:INFORMIXSERVER=<
 InstantDB (v3.13 and earlier);jdbc:idb:<DB>;jdbc.idbDriver
 InstantDB (v3.14 and later);jdbc:idb:<DB>;org.enhydra.instantdb.jdbc.idbDriver
 Interbase (InterClient Driver);jdbc:interbase://<HOST>/<DB>;interbase.interclient.Driver
-H2 embedded (Java SQL database);jdbc:h2:<DB-File>;org.h2.Driver;lib/h2-1.3.160.jar
-H2 TCP (Java SQL database);jdbc:h2:tcp://<HOST>/<DB-File>;org.h2.Driver;lib/h2-1.3.160.jar
+H2 embedded (Java SQL database);jdbc:h2:<DB-File>;org.h2.Driver;lib/h2-1.3.175.jar
+H2 TCP (Java SQL database);jdbc:h2:tcp://<HOST>/<DB-File>;org.h2.Driver;lib/h2-1.3.175.jar
 HyperSQL;jdbc:hsqldb:<file|hsql|http>:<DB>;org.hsqldb.jdbcDriver
 # Microsoft SQL Server (jTDS);jdbc:jtds:sqlserver://<server>[:<port>][/<database>];net.sourceforge.jtds.jdbc.Driver;lib/jtds-1.3.1.jar
 # Microsoft SQL Server (JTurbo Driver);jdbc:JTurbo://<HOST>:<PORT>/<DB>;com.ashna.jturbo.driver.Driver

releasenotes.txt

@@ -1,3 +1,56 @@
+8.0.1
+  - Foreign key columns can be set to null if parent row is not exported.
+  - Increased responsiveness and performance of the data browser GUI.
+
+8.0
+  - The new "PathFinder" feature allows elaborate finding
+    of association paths between tables in complex data models.
+
+7.11.1
+  - Closing a root table did not work properly in the data browser.
+  - Minor bug fixes.
+
+7.11
+  - Database analysis not only finds primary keys and foreign keys for tables,
+    but also for views and synonyms by analyzing the underlying tables.
+  - Fixed a memory leak in data browser.
+
+7.10.8
+  - Data browser improvements
+    - New layout feature: "align table horizontally with predecessor"
+    - Improved layout strategy in the data browser.
+    - Improved row-to-row-link rendering performance.
+  - Feature Request "Improve the usability of the Data Model Editor" (partially). see https://sourceforge.net/p/jailer/feature-requests/43/
+
+7.10.7
+  - Zoom in / out using the mouse wheel in the data browser
+
+7.10.6
+  - Minor bug fixes.
+
+7.10.5
+  - Animated desktop layout in the data browser.
+  - Improved row-link rendering quality and performance.
+
+7.10.4
+  - The estimated number of rows of the tables is displayed.
+  - Limited fetch size of statements to prevent an OOM exception when the default fetch size is too large (MySQL).
+  - Updated H2 DBMS from version 1.3.160 to 1.3.175
+
+7.10.3
+  - Fix for "Can't connect to SOCKS proxy:http" https://github.com/Wisser/Jailer/issues/8
+
+7.10.2
+  - Added context menu to columns view of results table.
+
+7.10
+  - Comprehensive usability improvements of the data browser.
+  - Animated row-to-row links.
+  - Increased rendering quality of row-to-row link.
+  - Automatic layouting of data browser desktop.
+  - Using working-table-scope "LOCAL_DATABASE" led to concurrency problems and connection leaks.
+  - Update of SQL keyword catalog to SQL 2003 standard.
+
 7.9.3
   - Data browser: prevented that context menu automatically gets closed if the item doesn't have the focus.
 

src/main/engine/net/sf/jailer/ExecutionContext.java

@@ -77,7 +77,7 @@ public class ExecutionContext {
 		this.importFilterMappingTableSchema = other.importFilterMappingTableSchema;
 		this.scope = other.scope;
 		this.rawparameters = other.rawparameters;
-		this.progressListenerRegistry = other.progressListenerRegistry;
+// don't share progressListenerRegistry, was: this.progressListenerRegistry = other.progressListenerRegistry;
 	}
 
 	/**
@@ -639,7 +639,7 @@ public class ExecutionContext {
 	}
 
 	private URL datamodelURL;
-	
+
 	/**
 	 * Gets URL of the current data model (the datamodels base folder)
 	 */
@@ -652,14 +652,14 @@ public class ExecutionContext {
 				fn = datamodelFolder + File.separator + currentModelSubfolder;
 			}
 			try {
-				datamodelURL = new File(fn).toURI().toURL();
+				return new File(fn).toURI().toURL();
 			} catch (MalformedURLException e) {
 				throw new RuntimeException(e);
 			}
 		}
 		return datamodelURL;
 	}
-	
+
 	/**
 	 * Sets URL of the current data model (the datamodels base folder)
 	 */
@@ -815,4 +815,4 @@ public class ExecutionContext {
 		return map == null? null : new HashMap<String, String>(map);
 	}
 
-}
+}

src/main/engine/net/sf/jailer/Jailer.java

@@ -131,7 +131,6 @@ public class Jailer {
 	 */
 	public static boolean jailerMain(String[] args, StringBuffer warnings, ProgressListener progressListener) throws Exception {
 		CancellationHandler.reset(null);
-		Session.closeTemporaryTableSession();
 
 		try {
 			CommandLine commandLine = CommandLineParser.parse(args, false);
@@ -268,8 +267,6 @@ public class Jailer {
 			String workingDirectory = System.getProperty("user.dir");
 			_log.error("working directory is " + workingDirectory);
 			throw e;
-		} finally {
-			Session.closeTemporaryTableSession();
 		}
 	}
 

src/main/engine/net/sf/jailer/JailerVersion.java

@@ -25,7 +25,7 @@ public class JailerVersion {
 	/**
 	 * The Jailer version.
 	 */
-	public static final String VERSION = "7.9.3";
+	public static final String VERSION = "8.0.1";
 
 	/**
 	 * The Jailer working tables version.

src/main/engine/net/sf/jailer/api_example/APIExample.java

@@ -42,7 +42,7 @@ public class APIExample {
 			new BasicDataSource(
 					"org.h2.Driver", "jdbc:h2:demo-scott", "sa", "",
 					POOL_SIZE,
-					new File("lib/h2-1.3.160.jar")),
+					new File("lib/h2-1.3.175.jar")),
 			null,
 			APIExample.class.getResource("Demo-Scott"),
 			APIExample.class.getResource("Demo-Scott.csv"),
@@ -54,7 +54,7 @@ public class APIExample {
 			new BasicDataSource(
 				"org.h2.Driver", "jdbc:h2:demo-scott-subset", "sa", "",
 				10,
-				new File("lib/h2-1.3.160.jar")));
+				new File("lib/h2-1.3.175.jar")));
 
 	/**
 	 * Exports data related with employee "SCOTT"

src/main/engine/net/sf/jailer/configuration/Configuration.java

@@ -113,6 +113,17 @@ public class Configuration {
 
 	private int columnsPerIFMTable = 8;
 
+
+	private String additionalSQLKeywords;
+
+	public String getAdditionalSQLKeywords() {
+		return additionalSQLKeywords;
+	}
+
+	public void setAdditionalSQLKeywords(String additionalSQLKeywords) {
+		this.additionalSQLKeywords = additionalSQLKeywords;
+	}
+
 	/**
 	 * Gets replacement for null in DBUnit datasets.
 	 * 
@@ -238,5 +249,4 @@ public class Configuration {
 	static {
 		DBMS.values(); // trigger static init
 	}
-
 }

src/main/engine/net/sf/jailer/configuration/DBMS.java

@@ -104,6 +104,9 @@ public class DBMS {
 		this.rowidName = other.rowidName;
 		this.supportsSchemasInIndexDefinitions = other.supportsSchemasInIndexDefinitions;
 		this.useInlineViewsInDataBrowser = other.useInlineViewsInDataBrowser;
+		this.viewTextOrDDLQuery = other.viewTextOrDDLQuery;
+		this.synonymTableQuery = other.synonymTableQuery;
+		this.estimatedRowCountQuery = other.estimatedRowCountQuery;
 		this.virtualColumnsQuery = other.virtualColumnsQuery;
 		this.userDefinedColumnsQuery = other.userDefinedColumnsQuery;
 		this.importedKeysQuery = other.importedKeysQuery;
@@ -291,12 +294,12 @@ public class DBMS {
 	private Boolean supportsSchemasInIndexDefinitions = null;
 	private boolean useInlineViewsInDataBrowser = true;
 	private String virtualColumnsQuery = null;
+	private String synonymTableQuery;
+	private String viewTextOrDDLQuery = "SELECT VIEW_DEFINITION FROM INFORMATION_SCHEMA.VIEWS WHERE TABLE_SCHEMA = '%1$s' and TABLE_NAME = '%2$s'";
+	private String estimatedRowCountQuery = null;
 	private String userDefinedColumnsQuery = null;
-	
 	private String importedKeysQuery = null;
-	
 	private String primaryKeysQuery = null;
-	
 	private String indexInfoQuery = null;
 	private String identifierQuoteString = "\"";
 
@@ -520,7 +523,11 @@ public class DBMS {
 	public Map<String, String> getTypeReplacement() {
 		if (!this.equals(DBMS.ORACLE)) {
 			if (typeReplacement == null || !typeReplacement.containsKey("VARCHAR2")) {
-				typeReplacement = new HashMap<String, String>(typeReplacement);
+				if (typeReplacement == null) {
+					typeReplacement = new HashMap<String, String>();
+				} else {
+					typeReplacement = new HashMap<String, String>(typeReplacement);
+				}
 				typeReplacement.put("VARCHAR2", "VARCHAR");
 			}
 		}
@@ -1007,6 +1014,42 @@ public class DBMS {
 		this.constraintsQuery = constraintsQuery;
 	}
 
+	/**
+	 * Gets query to get row count.
+	 */
+	public String getEstimatedRowCountQuery() {
+		return estimatedRowCountQuery;
+	}
+
+	/**
+	 * Sets query to get row count.
+	 */
+	public void setEstimatedRowCountQuery(String estimatedRowCountQuery) {
+		this.estimatedRowCountQuery = estimatedRowCountQuery;
+	}
+
+	/**
+	 * Gets query to get view text.
+	 */
+	public String getViewTextOrDDLQuery() {
+		return viewTextOrDDLQuery;
+	}
+
+	public void setViewTextOrDDLQuery(String viewTextOrDDLQuery) {
+		this.viewTextOrDDLQuery = viewTextOrDDLQuery;
+	}
+
+	/**
+	 * Gets query to get underlying table of a synonym.
+	 */
+	public String getSynonymTableQuery() {
+		return synonymTableQuery;
+	}
+
+	public void setSynonymTableQuery(String synonymTableQuery) {
+		this.synonymTableQuery = synonymTableQuery;
+	}
+
 	/* (non-Javadoc)
 	 * @see java.lang.Object#hashCode()
 	 */

src/main/engine/net/sf/jailer/configuration/LocalDatabaseConfiguration.java

@@ -32,7 +32,7 @@ public class LocalDatabaseConfiguration {
 	private String password = "";
 
 	private String driver = "org.h2.Driver";
-	private String lib = "lib/h2-1.3.160.jar";
+	private String lib = "lib/h2-1.3.175.jar";
 
 	/**
 	 * @return the localPKType

src/main/engine/net/sf/jailer/configuration/jailer.xml

@@ -4,7 +4,7 @@
     <!-- Configuration of the local database -->
     <localDatabase>
         <databaseFolder>local</databaseFolder>
-        <lib>lib/h2-1.3.160.jar</lib>
+        <lib>lib/h2-1.3.175.jar</lib>
         <driver>org.h2.Driver</driver>
         <urlPattern>jdbc:h2:%s;LOG=0;UNDO_LOG=0</urlPattern>
         <localPKType>VARCHAR</localPKType>
@@ -43,6 +43,9 @@
         <maxDepth>0</maxDepth>
         <outputFolder>render</outputFolder>
     </renderer>
+    
+    <!-- additional SQL keywords -->
+	<additionalSQLKeywords>sensitive, datetime</additionalSQLKeywords>
 
     <!-- for Oracle -->
     <dbms>
@@ -60,12 +63,6 @@
                 <key>CatalogOptions</key>
                 <value>0</value>
             </entry>
-<!--
-            <entry>
-                <key>includeSynonyms</key>
-                <value>true</value>
-            </entry>
--->
         </jdbcProperties>
         <statisticRenovator>
             <scriptFileName>script/oracle/gatherStatistics.sql</scriptFileName>
@@ -108,6 +105,7 @@
         <rowidName>ROWID</rowidName>
         <rowidType>ROWID</rowidType>
         <useInlineViewsInDataBrowser>false</useInlineViewsInDataBrowser>
+        <estimatedRowCountQuery>select TABLE_NAME, NUM_ROWS from all_tables where OWNER = '%s'</estimatedRowCountQuery>
         <virtualColumnsQuery>SELECT TABLE_NAME, COLUMN_NAME FROM ALL_TAB_COLS WHERE OWNER = '${SCHEMA}' AND VIRTUAL_COLUMN = 'YES' AND NOT DATA_TYPE = 'XMLTYPE'</virtualColumnsQuery>
         <importedKeysQuery>SELECT null, c_dest.OWNER, c_dest.TABLE_NAME, c_dest.COLUMN_NAME, null, c_src.OWNER, c_src.TABLE_NAME, c_src.COLUMN_NAME, c_src.POSITION,        null, null, c_list.CONSTRAINT_NAME, c_list.R_CONSTRAINT_NAME, null FROM ALL_CONSTRAINTS c_list, ALL_CONS_COLUMNS c_src, ALL_CONS_COLUMNS c_dest WHERE c_list.CONSTRAINT_NAME   = c_src.CONSTRAINT_NAME  AND  c_list.OWNER = c_src.OWNER  AND  c_list.R_CONSTRAINT_NAME = c_dest.CONSTRAINT_NAME  AND  c_list.R_OWNER = c_dest.OWNER  AND  c_list.CONSTRAINT_TYPE = 'R'  AND  c_src.POSITION = c_dest.POSITION  AND  c_src.OWNER = '${SCHEMA}'  ORDER BY c_src.POSITION</importedKeysQuery>
         <primaryKeysQuery>SELECT null, c_src.OWNER, c_src.TABLE_NAME, c_src.COLUMN_NAME, c_src.POSITION, c_list.CONSTRAINT_NAME FROM ALL_CONSTRAINTS c_list, ALL_CONS_COLUMNS c_src WHERE c_list.CONSTRAINT_NAME   = c_src.CONSTRAINT_NAME  AND  c_list.OWNER             = c_src.OWNER  AND  c_list.CONSTRAINT_TYPE = 'P'  AND  c_list.CONSTRAINT_NAME not like 'BIN$%'  AND  c_src.OWNER      = '${SCHEMA}'  ORDER BY c_src.POSITION</primaryKeysQuery>
@@ -117,6 +115,8 @@
         <explainPrepare>explain plan set statement_id = '%2$s' for %1$s</explainPrepare>
         <explainQuery>select * from table(dbms_xplan.display(NULL, '%2$s'))</explainQuery>
         <explainCleanup></explainCleanup>
+        <synonymTableQuery>select '"' || TABLE_OWNER || '"."' || TABLE_NAME || '"' from ALL_SYNONYMS where OWNER = '%1$s' and SYNONYM_NAME = '%2$s'</synonymTableQuery>
+        <viewTextOrDDLQuery>select TEXT from all_views where OWNER = '%1$s' and VIEW_NAME = '%2$s'</viewTextOrDDLQuery>
         <functionSourceQuery>SELECT 'Source', text FROM all_source WHERE type = 'FUNCTION' and name = '%2$s' AND owner = '%1$s' ORDER BY line</functionSourceQuery>
         <procedureSourceQuery>SELECT 'Source', text FROM all_source WHERE type = 'PROCEDURE' and name = '%2$s' AND owner = '%1$s' ORDER BY line</procedureSourceQuery>
         <packageNamesQuery>SELECT OBJECT_NAME FROM ALL_OBJECTS WHERE OBJECT_TYPE = 'PACKAGE' AND OWNER = '%1$s'</packageNamesQuery>
@@ -257,6 +257,15 @@ union all
         <avoidLeftJoin>false</avoidLeftJoin>
         <supportsSchemasInIndexDefinitions>false</supportsSchemasInIndexDefinitions>
         <useInlineViewsInDataBrowser>true</useInlineViewsInDataBrowser>
+        <estimatedRowCountQuery>
+SELECT tbl.name, p.rows
+FROM sys.tables AS tbl
+INNER JOIN sys.indexes AS idx ON idx.object_id = tbl.object_id and idx.index_id &lt; 2
+INNER JOIN sys.partitions AS p ON p.object_id=CAST(tbl.object_id AS int)
+AND p.index_id=idx.index_id
+WHERE SCHEMA_NAME(tbl.schema_id)='%s'
+		</estimatedRowCountQuery>
+		<viewTextOrDDLQuery>SELECT VIEW_DEFINITION FROM INFORMATION_SCHEMA.VIEWS WHERE TABLE_SCHEMA = '%1$s' and TABLE_NAME = '%2$s'</viewTextOrDDLQuery>
         <virtualColumnsQuery>SELECT sysobjects.name AS TableName, syscolumns.name AS ColumnName FROM syscolumns JOIN sysobjects ON syscolumns.id = sysobjects.id AND sysobjects.xtype = 'U' WHERE syscolumns.iscomputed = 1</virtualColumnsQuery>
 		<userDefinedColumnsQuery>SELECT distinct DOMAIN_NAME from INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = '%s' AND DOMAIN_NAME is not null</userDefinedColumnsQuery>
 <!-- 
@@ -432,7 +441,10 @@ union all
         <binaryPattern>x'%s'</binaryPattern>
         <avoidLeftJoin>false</avoidLeftJoin>
         <useInlineViewsInDataBrowser>true</useInlineViewsInDataBrowser>
-        <virtualColumnsQuery>SELECT TABLE_NAME, COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = '${SCHEMA}' AND EXTRA LIKE '%VIRTUAL%'</virtualColumnsQuery>
+		<estimatedRowCountQuery>select TABLE_NAME, CARDINALITY from INFORMATION_SCHEMA.STATISTICS where TABLE_SCHEMA = '%s'</estimatedRowCountQuery>
+		<viewTextOrDDLQuery>SELECT VIEW_DEFINITION FROM INFORMATION_SCHEMA.VIEWS WHERE TABLE_SCHEMA = '%1$s' and TABLE_NAME = '%2$s'</viewTextOrDDLQuery>
+        
+		<virtualColumnsQuery>SELECT TABLE_NAME, COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = '${SCHEMA}' AND EXTRA LIKE '%VIRTUAL%'</virtualColumnsQuery>
 <!--
         <importedKeysQuery>SELECT PKCU.TABLE_SCHEMA, null, PKCU.TABLE_NAME, PKCU.COLUMN_NAME, KCU.TABLE_SCHEMA, null, KCU.TABLE_NAME, KCU.COLUMN_NAME, KCU.ORDINAL_POSITION,        null, null, RC.CONSTRAINT_NAME, RC.UNIQUE_CONSTRAINT_NAME, null  FROM INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS RC  JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE KCU    ON KCU.CONSTRAINT_CATALOG = RC.CONSTRAINT_CATALOG        AND KCU.CONSTRAINT_SCHEMA = RC.CONSTRAINT_SCHEMA       AND KCU.CONSTRAINT_NAME = RC.CONSTRAINT_NAME  JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE PKCU    ON PKCU.CONSTRAINT_CATALOG = RC.UNIQUE_CONSTRAINT_CATALOG        AND PKCU.CONSTRAINT_SCHEMA = RC.UNIQUE_CONSTRAINT_SCHEMA       AND PKCU.CONSTRAINT_NAME = RC.UNIQUE_CONSTRAINT_NAME AND PKCU.TABLE_NAME = RC.REFERENCED_TABLE_NAME AND PKCU.ORDINAL_POSITION = KCU.ORDINAL_POSITION  WHERE PKCU.TABLE_SCHEMA = '${SCHEMA}'  ORDER BY KCU.ORDINAL_POSITION</importedKeysQuery>
         <primaryKeysQuery>SELECT null, KCU.TABLE_SCHEMA, KCU.TABLE_NAME, KCU.COLUMN_NAME, KCU.ORDINAL_POSITION, C.CONSTRAINT_NAME   FROM   INFORMATION_SCHEMA.TABLE_CONSTRAINTS C   JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE KCU     ON KCU.CONSTRAINT_CATALOG = C.CONSTRAINT_CATALOG        AND KCU.CONSTRAINT_SCHEMA = C.CONSTRAINT_SCHEMA   AND KCU.TABLE_NAME = C.TABLE_NAME    AND KCU.CONSTRAINT_NAME = C.CONSTRAINT_NAME   WHERE C.CONSTRAINT_TYPE = 'PRIMARY KEY'       AND  KCU.TABLE_SCHEMA = '${SCHEMA}'   ORDER BY KCU.ORDINAL_POSITION</primaryKeysQuery>
@@ -545,6 +557,8 @@ union all
         <binaryPattern>x'%s'</binaryPattern>
         <avoidLeftJoin>false</avoidLeftJoin>
         <useInlineViewsInDataBrowser>true</useInlineViewsInDataBrowser>
+        <estimatedRowCountQuery>SELECT TABNAME, CARD FROM SYSSTAT.TABLES WHERE TABSCHEMA = '%s'</estimatedRowCountQuery>
+        <viewTextOrDDLQuery>SELECT TEXT FROM SYSCAT.VIEWS WHERE VIEWSCHEMA = '%1$s' and VIEWNAME = '%2$s'</viewTextOrDDLQuery> 
         <virtualColumnsQuery>SELECT TABNAME, COLNAME from syscat.columns WHERE TABSCHEMA='${SCHEMA}' AND GENERATED='A'</virtualColumnsQuery>
         <importedKeysQuery> SELECT null, REF.REFTABSCHEMA, REF.REFTABNAME, PKCOL.COLNAME,        null, REF.TABSCHEMA, REF.TABNAME, FKCOL.COLNAME, FKCOL.COLSEQ,        null, null, REF.CONSTNAME, REF.REFKEYNAME, null FROM syscat.references REF, syscat.keycoluse PKCOL, syscat.keycoluse FKCOL WHERE REF.CONSTNAME = FKCOL.CONSTNAME   AND REF.TABSCHEMA = FKCOL.TABSCHEMA   AND REF.TABNAME = FKCOL.TABNAME   AND REF.REFKEYNAME = PKCOL.CONSTNAME   AND REF.REFTABSCHEMA = PKCOL.TABSCHEMA   AND REF.REFTABNAME = PKCOL.TABNAME   AND FKCOL.COLSEQ = PKCOL.COLSEQ   AND REF.REFTABSCHEMA = '${SCHEMA}'   ORDER BY FKCOL.COLSEQ</importedKeysQuery>
         <primaryKeysQuery>   SELECT null, CONST.TABSCHEMA, CONST.TABNAME, PKCOL.COLNAME, PKCOL.COLSEQ, CONST.CONSTNAME FROM syscat.tabconst CONST, syscat.keycoluse PKCOL WHERE CONST.CONSTNAME = PKCOL.CONSTNAME   AND CONST.TABSCHEMA = PKCOL.TABSCHEMA   AND CONST.TABNAME = PKCOL.TABNAME   AND CONST.TYPE = 'P'   AND CONST.TABSCHEMA = '${SCHEMA}'   ORDER BY PKCOL.COLSEQ</primaryKeysQuery>
@@ -661,6 +675,8 @@ Select CNAME, TNAME, COLNAME, CTYPE, DETAIL From
         <binaryPattern>x'%s'</binaryPattern>
         <avoidLeftJoin>false</avoidLeftJoin>
         <useInlineViewsInDataBrowser>true</useInlineViewsInDataBrowser>
+        <viewTextOrDDLQuery>SELECT TEXT FROM SYSCAT.VIEWS WHERE VIEWSCHEMA = '%1$s' and VIEWNAME = '%2$s'</viewTextOrDDLQuery> 
+        <estimatedRowCountQuery>SELECT TABNAME, CARD FROM SYSSTAT.TABLES WHERE TABSCHEMA = '%s'</estimatedRowCountQuery>
         <virtualColumnsQuery>SELECT TABNAME, COLNAME from syscat.columns WHERE TABSCHEMA='${SCHEMA}' AND GENERATED='A'</virtualColumnsQuery>
         <importedKeysQuery>SELECT null, REF.REFTABSCHEMA, REF.REFTABNAME, PKCOL.COLNAME, null, REF.TABSCHEMA, REF.TABNAME, FKCOL.COLNAME, FKCOL.COLSEQ, null, null, REF.CONSTNAME, REF.REFKEYNAME, null FROM syscat.references REF, syscat.keycoluse PKCOL, syscat.keycoluse FKCOL WHERE REF.CONSTNAME = FKCOL.CONSTNAME   AND REF.TABSCHEMA = FKCOL.TABSCHEMA   AND REF.TABNAME = FKCOL.TABNAME   AND REF.REFKEYNAME = PKCOL.CONSTNAME   AND REF.REFTABSCHEMA = PKCOL.TABSCHEMA   AND REF.REFTABNAME = PKCOL.TABNAME   AND FKCOL.COLSEQ = PKCOL.COLSEQ   AND REF.REFTABSCHEMA = '${SCHEMA}' ORDER BY FKCOL.COLSEQ</importedKeysQuery>
         <primaryKeysQuery>SELECT null, CONST.TABSCHEMA, CONST.TABNAME, PKCOL.COLNAME, PKCOL.COLSEQ, CONST.CONSTNAME FROM syscat.tabconst CONST, syscat.keycoluse PKCOL WHERE CONST.CONSTNAME = PKCOL.CONSTNAME   AND CONST.TABSCHEMA = PKCOL.TABSCHEMA   AND CONST.TABNAME = PKCOL.TABNAME   AND CONST.TYPE = 'P'   AND CONST.TABSCHEMA = '${SCHEMA}'   ORDER BY PKCOL.COLSEQ</primaryKeysQuery>
@@ -789,6 +805,13 @@ Select CNAME, TNAME, COLNAME, CTYPE, DETAIL From
         <supportsSchemasInIndexDefinitions>false</supportsSchemasInIndexDefinitions>
         <useInlineViewsInDataBrowser>true</useInlineViewsInDataBrowser>
         <identifierQuoteString>"</identifierQuoteString>
+		<viewTextOrDDLQuery>SELECT VIEW_DEFINITION FROM INFORMATION_SCHEMA.VIEWS WHERE TABLE_SCHEMA = '%1$s' and TABLE_NAME = '%2$s'</viewTextOrDDLQuery>
+		<estimatedRowCountQuery>
+SELECT c.relname, c.reltuples::bigint AS estimate
+FROM   pg_class c
+JOIN   pg_namespace n ON n.oid = c.relnamespace
+WHERE  n.nspname = '%s'
+		</estimatedRowCountQuery>
         <explainPrepare></explainPrepare>
         <explainQuery>explain %1$s</explainQuery>
         <explainCleanup></explainCleanup>
@@ -1106,6 +1129,7 @@ union all
         <binaryPattern>x'%s'</binaryPattern>
         <avoidLeftJoin>false</avoidLeftJoin>
         <useInlineViewsInDataBrowser>false</useInlineViewsInDataBrowser>
+		<estimatedRowCountQuery>select TABLE_NAME, ROW_COUNT_ESTIMATE from INFORMATION_SCHEMA.TABLES where TABLE_SCHEMA = '%s'</estimatedRowCountQuery>
         <virtualColumnsQuery>SELECT TABLE_NAME, COLUMN_NAME from INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA='${SCHEMA}' AND IS_COMPUTED</virtualColumnsQuery>
         <identifierQuoteString>"</identifierQuoteString>
         <explainPrepare></explainPrepare>

src/main/engine/net/sf/jailer/database/BasicDataSource.java

@@ -19,10 +19,12 @@ import java.sql.SQLFeatureNotSupportedException;
 import java.sql.Statement;
 import java.util.Collections;
 import java.util.HashMap;
+import java.util.HashSet;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
 import java.util.Properties;
+import java.util.Set;
 import java.util.TreeSet;
 import java.util.regex.Pattern;
 
@@ -48,7 +50,7 @@ public class BasicDataSource implements DataSource {
 	/**
 	 * Name of JDBC-driver class.
 	 */
-	private final String driverClassName;
+	final String driverClassName;
 	
 	/**
 	 * The DB URL.
@@ -196,6 +198,8 @@ public class BasicDataSource implements DataSource {
 		}
 	}
 
+	private static Set<String> registeredDriverClassNames = new HashSet<String>();
+	
 	private void loadDriver(URL[] jdbcDriverURL) {
 		ClassLoader classLoaderForJdbcDriver = addJarToClasspath(jdbcDriverURL);
 		try {
@@ -204,6 +208,7 @@ public class BasicDataSource implements DataSource {
 				try {
 					d = (Driver) Class.forName(driverClassName, true, classLoaderForJdbcDriver).newInstance();
 					DriverManager.registerDriver(new DriverShim(d));
+					registeredDriverClassNames.add(driverClassName);
 				} catch (InstantiationException e) {
 					throw new RuntimeException(e);
 				} catch (IllegalAccessException e) {
@@ -215,7 +220,9 @@ public class BasicDataSource implements DataSource {
 		} catch (SQLException e) {
 			throw new RuntimeException(e);
 		} catch (ClassNotFoundException e) {
-			throw new RuntimeException(e);
+			if (!registeredDriverClassNames.contains(driverClassName)) {
+				throw new RuntimeException(e);
+			}
 		}
 	}
 

src/main/engine/net/sf/jailer/database/Session.java

@@ -66,12 +66,12 @@ public class Session {
 	/**
 	 * The session in which temporary tables lives, if any.
 	 */
-	private static Connection temporaryTableSession = null;
+	private Connection temporaryTableSession = null;
 		
 	/**
 	 * Shared scope of temporary tables.
 	 */
-	private static WorkingTableScope temporaryTableScope;
+	private WorkingTableScope temporaryTableScope;
 	
 	/**
 	 * Scope of temporary tables.
@@ -201,6 +201,11 @@ public class Session {
 	 */
 	public final DBMS dbms;
 	
+	/**
+	 * The DBMS.
+	 */
+	public final String driverClassName;
+	
 	/**
 	 * The dbUrl (<code>null</code> if unknown)
 	 */
@@ -238,12 +243,11 @@ public class Session {
 		this.local = local;
 		this.scope = scope;
 		this.dbms = dbms;
+		this.driverClassName = (dataSource instanceof BasicDataSource)? ((BasicDataSource) dataSource).driverClassName : null;
 		this.dbUrl = (dataSource instanceof BasicDataSource)? ((BasicDataSource) dataSource).dbUrl : null;
 		this.schema = (dataSource instanceof BasicDataSource)? ((BasicDataSource) dataSource).dbUser : "";
-		if (scope != null) {
-			closeTemporaryTableSession();
-			temporaryTableScope = scope;
-		}
+		this.temporaryTableScope = scope;
+
 		connectionFactory = new ConnectionFactory() {
 			private Connection defaultConnection = null;
 			private Random random = new Random();
@@ -291,7 +295,7 @@ public class Session {
 					} catch (SQLException e) {
 						_log.info("can't set isolation level to UR. Reason: " + e.getMessage());
 					}
-					if (scope != null && scope != WorkingTableScope.GLOBAL) {
+					if (scope == WorkingTableScope.SESSION_LOCAL || scope == WorkingTableScope.TRANSACTION_LOCAL) {
 						temporaryTableSession = con;
 					} else {
 						connection.set(con);
@@ -793,6 +797,7 @@ public class Session {
 		for (Connection con: connections) {
 			con.close();
 		}
+		closeTemporaryTableSession();
 		_log.info("connection closed");
 	}
 	
@@ -849,7 +854,7 @@ public class Session {
 	/**
 	 * Closes the session in which temporary tables lives, if any.
 	 */
-	public static void closeTemporaryTableSession() {
+	private void closeTemporaryTableSession() {
 		try {
 			if (temporaryTableSession != null) {
 				if (temporaryTableScope == WorkingTableScope.TRANSACTION_LOCAL) {
@@ -968,4 +973,24 @@ public class Session {
 		}
 	}
 
+	/**
+	 * Checks SQL query.
+	 * 
+	 * @param sql 
+	 * @return <code>true</code> iff sql is executable without errors
+	 */
+	public boolean checkQuery(String sql) {
+		try {
+			executeQuery(sql, new AbstractResultSetReader() {
+				@Override
+				public void readCurrentRow(ResultSet resultSet) throws SQLException {
+					// nothing to do
+				}
+			});
+		} catch (Exception e) {
+			return false;
+		}
+		return true;
+	}
+
 }

src/main/engine/net/sf/jailer/datamodel/Association.java

@@ -552,4 +552,51 @@ public class Association extends ModelElement {
 		return mapping;
 	}
 
-}
+	public boolean hasNullableFK() {
+		if (!isInsertDestinationBeforeSource()) {
+			return false;
+		}
+		Map<Column, Column> sdMap = createSourceToDestinationKeyMapping();
+		if (sdMap.isEmpty()) {
+			return false;
+		}
+		for (Column c: sdMap.keySet()) {
+			if (!c.isNullable) {
+				return false;
+			}
+			if (c.getFilter() != null && !c.getFilter().isDerived() && !c.getFilter().isNullFilter()) {
+				return false;
+			}
+			for (Column pk: source.primaryKey.getColumns()) {
+				if (c.name.equals(pk.name)) {
+					return false;
+				}
+			}
+		}
+		return true;
+	}
+
+	public boolean fkHasNullFilter() {
+		Map<Column, Column> sdMap = createSourceToDestinationKeyMapping();
+		for (Column c: sdMap.keySet()) {
+			if (c.getFilter() == null || !c.getFilter().isNullFilter()) {
+				return false;
+			}
+		}
+		return true;
+	}
+
+	public void setOrResetFKNullFilter(boolean set) {
+		Map<Column, Column> sdMap = createSourceToDestinationKeyMapping();
+		for (Column c: sdMap.keySet()) {
+			if (set) {
+				c.setFilter(new Filter("null", null, false, null));
+			} else {
+				c.setFilter(null);
+			}
+		}
+		getDataModel().deriveFilters();
+		getDataModel().version++;
+	}
+
+}

src/main/engine/net/sf/jailer/datamodel/Filter.java

@@ -184,4 +184,8 @@ public class Filter {
 		return applyAtExport;
 	}
 
+	public boolean isNullFilter() {
+		return "null".equalsIgnoreCase(expression.trim());
+	}
+
 }

src/main/engine/net/sf/jailer/datamodel/PrimaryKey.java

@@ -200,6 +200,11 @@ public class PrimaryKey {
 		return toSQL(null);
 	}
 
+	public void assign(List<Column> primaryKeyColumns) {
+		columns.clear();
+		columns.addAll(primaryKeyColumns);
+	}
+
 	public static boolean isIncreasable(Column uPKColumn, Column column) {
 		if(!uPKColumn.type.equals(column.type)) {
 			return false;
@@ -228,4 +233,5 @@ public class PrimaryKey {
 		// never should get THIS far !
 		return false;
 	}
+
 }

src/main/engine/net/sf/jailer/datamodel/RowIdSupport.java

@@ -16,6 +16,7 @@
 
 package net.sf.jailer.datamodel;
 
+import java.sql.SQLException;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
@@ -23,6 +24,7 @@ import java.util.List;
 import net.sf.jailer.ExecutionContext;
 import net.sf.jailer.configuration.DBMS;
 import net.sf.jailer.database.Session;
+import net.sf.jailer.util.Quoting;
 
 
 /**
@@ -99,15 +101,27 @@ public class RowIdSupport {
 	 * @param table the table
 	 * @return the primary key of the table
 	 */
-	public PrimaryKey getPrimaryKey(Table table) {
+	public PrimaryKey getPrimaryKey(Table table, Session session) {
 		if (table.primaryKey != null) {
 			if (useRowIds && (!useRowIdsOnlyForTablesWithoutPK || table.primaryKey.getColumns().isEmpty())) {
-				return tablePK;
+				if (session == null || isRowIDApplicable(table, session)) {
+					return tablePK;
+				}
 			}
 		}
 		return table.primaryKey;
 	}
 	
+	/**
+	 * Gets the primary key of a table.
+	 * 
+	 * @param table the table
+	 * @return the primary key of the table
+	 */
+	public PrimaryKey getPrimaryKey(Table table) {
+		return getPrimaryKey(table, null);
+	}
+
 	/**
 	 * Gets the universal primary key.
 	 * 
@@ -147,13 +161,15 @@ public class RowIdSupport {
 	 * @param table the table
 	 * @return the columns of the table
 	 */
-	public List<Column> getColumns(Table table) {
+	public List<Column> getColumns(Table table, Session session) {
 		List<Column> columns = table.getColumns();
 		if (table.primaryKey != null) {
 			if (useRowIds && (!useRowIdsOnlyForTablesWithoutPK || table.primaryKey.getColumns().isEmpty())) {
-				columns = new ArrayList<Column>(columns);
-				columns.addAll(tablePK.getColumns());
-				return columns;
+				if (session == null || isRowIDApplicable(table, session)) {
+					columns = new ArrayList<Column>(columns);
+					columns.addAll(tablePK.getColumns());
+					return columns;
+				}
 			}
 		}
 		return columns;
@@ -163,4 +179,35 @@ public class RowIdSupport {
 		return rowIdColumn != null && rowIdColumn.name.equals(column.name);
 	}
 		
+	private boolean isRowIDApplicable(Table table, Session session) {
+		Boolean result = (Boolean) session.getSessionProperty(RowIdSupport.class, table.getName());
+		if (result != null) {
+			return result;
+		}
+		Quoting quoting;
+		result = false;
+		try {
+			quoting = new Quoting(session);
+			String schema = table.getSchema("");
+			String tableName;
+			if (schema.length() == 0) {
+				tableName = quoting.requote(table.getUnqualifiedName());
+			} else {
+				tableName = quoting.requote(schema) + "." + quoting.requote(table.getUnqualifiedName());
+			}
+			if (rowIdColumn != null) {
+				if (session.checkQuery("Select 1 from " + tableName + " Where 1=0")) {
+					result = session.checkQuery("Select 1 from " + tableName + " Where 1=0 and " + rowIdColumn.name + "=" + rowIdColumn.name);
+				} else {
+					return false;
+				}
+			}
+		} catch (SQLException e) {
+			result = true;
+		}
+		
+		session.setSessionProperty(RowIdSupport.class, table.getName(), result);
+		return result;
+	}
+
 }

src/main/engine/net/sf/jailer/entitygraph/local/LocalEntityGraph.java

@@ -1530,7 +1530,7 @@ public class LocalEntityGraph extends EntityGraph {
 	 */
 	@Override
 	public void shutDown() throws SQLException {
-		localSession.shutDown();
+		remoteSession.shutDown();
 	}
 
 	@Override

src/main/engine/net/sf/jailer/modelbuilder/JDBCMetaDataBasedModelElementFinder.java

@@ -15,6 +15,7 @@
  */
 package net.sf.jailer.modelbuilder;
 
+import java.sql.Connection;
 import java.sql.DatabaseMetaData;
 import java.sql.ResultSet;
 import java.sql.ResultSetMetaData;
@@ -26,8 +27,10 @@ import java.util.Collections;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Iterator;
+import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Map.Entry;
 import java.util.Set;
 import java.util.TreeMap;
 
@@ -48,6 +51,44 @@ import net.sf.jailer.util.CancellationHandler;
 import net.sf.jailer.util.Pair;
 import net.sf.jailer.util.Quoting;
 import net.sf.jailer.util.SqlUtil;
+import net.sf.jsqlparser.expression.Expression;
+import net.sf.jsqlparser.parser.CCJSqlParserUtil;
+import net.sf.jsqlparser.statement.Commit;
+import net.sf.jsqlparser.statement.SetStatement;
+import net.sf.jsqlparser.statement.StatementVisitor;
+import net.sf.jsqlparser.statement.Statements;
+import net.sf.jsqlparser.statement.UseStatement;
+import net.sf.jsqlparser.statement.alter.Alter;
+import net.sf.jsqlparser.statement.create.index.CreateIndex;
+import net.sf.jsqlparser.statement.create.table.CreateTable;
+import net.sf.jsqlparser.statement.create.view.AlterView;
+import net.sf.jsqlparser.statement.create.view.CreateView;
+import net.sf.jsqlparser.statement.delete.Delete;
+import net.sf.jsqlparser.statement.drop.Drop;
+import net.sf.jsqlparser.statement.execute.Execute;
+import net.sf.jsqlparser.statement.insert.Insert;
+import net.sf.jsqlparser.statement.merge.Merge;
+import net.sf.jsqlparser.statement.replace.Replace;
+import net.sf.jsqlparser.statement.select.AllColumns;
+import net.sf.jsqlparser.statement.select.AllTableColumns;
+import net.sf.jsqlparser.statement.select.FromItemVisitor;
+import net.sf.jsqlparser.statement.select.LateralSubSelect;
+import net.sf.jsqlparser.statement.select.ParenthesisFromItem;
+import net.sf.jsqlparser.statement.select.PlainSelect;
+import net.sf.jsqlparser.statement.select.Select;
+import net.sf.jsqlparser.statement.select.SelectExpressionItem;
+import net.sf.jsqlparser.statement.select.SelectItem;
+import net.sf.jsqlparser.statement.select.SelectItemVisitor;
+import net.sf.jsqlparser.statement.select.SelectVisitor;
+import net.sf.jsqlparser.statement.select.SetOperationList;
+import net.sf.jsqlparser.statement.select.SubJoin;
+import net.sf.jsqlparser.statement.select.SubSelect;
+import net.sf.jsqlparser.statement.select.TableFunction;
+import net.sf.jsqlparser.statement.select.ValuesList;
+import net.sf.jsqlparser.statement.select.WithItem;
+import net.sf.jsqlparser.statement.truncate.Truncate;
+import net.sf.jsqlparser.statement.update.Update;
+import net.sf.jsqlparser.statement.upsert.Upsert;
 
 /**
  * Finds associations and tables by analyzing the JDBC meta data.
@@ -123,11 +164,26 @@ public class JDBCMetaDataBasedModelElementFinder implements ModelElementFinder {
 		Quoting quoting = new Quoting(session);
 		ResultSet resultSet;
 		String defaultSchema = getDefaultSchema(session, session.getSchema());
-		 
-		for (Table table: dataModel.getTables()) {
+		Set<Association> toRemove = new HashSet<Association>();
+
+		for (Table viewOrTable: dataModel.getTables()) {
+			Table table;
+			Table underlyingTable = null;
+			UnderlyingTableInfo uti = null;
+			uti = underlyingTableInfos.get(viewOrTable.getName());
+			if (uti != null) {
+				underlyingTable = uti.underlyingTable;
+			}
+			table = viewOrTable;
 			_log.info("find associations with " + table.getName());
 			try {
-				resultSet = getImportedKeys(session, metaData, quoting.unquote(table.getOriginalSchema(quoting.quote(defaultSchema))), quoting.unquote(table.getUnqualifiedName()), true);
+				Table child = underlyingTable != null? underlyingTable : table;
+				String ikSchema = quoting.unquote(child.getOriginalSchema(quoting.quote(defaultSchema)));
+				Session ikSession = session;
+				if (sessionWithPermissionToReadSchema.containsKey(Quoting.normalizeIdentifier(ikSchema))) {
+					ikSession = sessionWithPermissionToReadSchema.get(Quoting.normalizeIdentifier(ikSchema));
+				}
+				resultSet = getImportedKeys(ikSession, metaData, ikSchema, quoting.unquote(child.getUnqualifiedName()), true);
 			} catch (Exception e) {
 				_log.info("failed. " + e.getMessage());
 				continue;
@@ -135,38 +191,82 @@ public class JDBCMetaDataBasedModelElementFinder implements ModelElementFinder {
 			Map<String, Association> fkMap = new HashMap<String, Association>();
 			Map<String, Integer> unknownFKCounter = new HashMap<String, Integer>();
 			while (resultSet.next()) {
-				Table pkTable = dataModel.getTable(toQualifiedTableName(quoting.quote(defaultSchema), quoting.quote(resultSet.getString(DBMS.MySQL.equals(session.dbms)? 1 : 2)), quoting.quote(resultSet.getString(3))));
-				String pkColumn = quoting.quote(resultSet.getString(4));
-				Table fkTable = dataModel.getTable(toQualifiedTableName(quoting.quote(defaultSchema), quoting.quote(resultSet.getString(DBMS.MySQL.equals(session.dbms)? 5 : 6)), quoting.quote(resultSet.getString(7))));
+				String qualifiedPKTableName = toQualifiedTableName(quoting.quote(defaultSchema), quoting.quote(resultSet.getString(DBMS.MySQL.equals(session.dbms)? 1 : 2)), quoting.quote(resultSet.getString(3)));
+//				String qualifiedFKTableName = toQualifiedTableName(quoting.quote(defaultSchema), quoting.quote(resultSet.getString(DBMS.MySQL.equals(session.dbms)? 5 : 6)), quoting.quote(resultSet.getString(7)));
+				Table defaultPkTable = dataModel.getTable(qualifiedPKTableName);
+
+				Table fkTable = table;
+				
 				String fkColumn = quoting.quote(resultSet.getString(8));
-				String foreignKey = resultSet.getString(12);
-				if (fkTable != null) {
-					if (foreignKey == null || foreignKey.trim().length() == 0) {
-						foreignKey = pkTable.getName();
-						int seq = resultSet.getInt(9);
-						String fkKey = fkTable.getName() + "." + foreignKey;
-						if (seq == 1) {
-							Integer count = unknownFKCounter.get(fkKey);
-							if (count == null) {
-								count = 1;
-							} else {
-								count++;
-							}
-							unknownFKCounter.put(fkKey, count);
-						}
-						foreignKey += "." + unknownFKCounter.get(fkKey);
+				if (uti != null) {
+					fkColumn = uti.columnMapping.get(fkColumn);
+				}
+
+				// collect all PKTables
+				Map<Table, UnderlyingTableInfo> infos = new LinkedHashMap<Table, UnderlyingTableInfo>();
+				if (defaultPkTable != null) {
+					infos.put(defaultPkTable, null);
+				}
+				for (Entry<String, UnderlyingTableInfo> e: underlyingTableInfos.entrySet()) {
+					Table view = dataModel.getTable(e.getKey());
+					if (view != null && qualifiedPKTableName.equals(e.getValue().underlyingTable.getName())) {
+						infos.put(view, e.getValue());
 					}
-					String fkName = fkTable.getName() + "." + foreignKey;
-					if (foreignKey != null && fkMap.containsKey(fkName)) {
-						fkMap.get(fkName).appendCondition("A." + fkColumn + "=B." + pkColumn);
-					} else {
-						if (pkTable != null && fkTable != null) {
-							Association association = new Association(fkTable, pkTable, false, true, "A." + fkColumn + "=B." + pkColumn, dataModel, false, Cardinality.MANY_TO_ONE);
-							association.setAuthor(metaData.getDriverName());
-							associations.add(association);
-							fkMap.put(fkName, association);
-							if (foreignKey != null) {
-								namingSuggestion.put(association, new String[] { foreignKey, fkTable.getUnqualifiedName() + "." + foreignKey });
+				}
+
+				for (Entry<Table, UnderlyingTableInfo> e: infos.entrySet()) {
+					Table pkTable = e.getKey();
+					String pkColumn = quoting.quote(resultSet.getString(4));
+					String foreignKey = resultSet.getString(12);
+					
+					UnderlyingTableInfo info = e.getValue();
+					if (info != null) {
+						pkColumn = info.columnMapping.get(pkColumn);
+					}
+
+					if (pkTable != null) {
+						if (foreignKey == null || foreignKey.trim().length() == 0) {
+							foreignKey = pkTable.getName();
+							if (info != null) {
+								foreignKey += "." + quoting.unquote(pkTable.getUnqualifiedName());
+							}
+							int seq = resultSet.getInt(9);
+							String fkKey = pkTable.getName() + "." + foreignKey;
+							if (seq == 1) {
+								Integer count = unknownFKCounter.get(fkKey);
+								if (count == null) {
+									count = 1;
+								} else {
+									count++;
+								}
+								unknownFKCounter.put(fkKey, count);
+							}
+							foreignKey += "." + unknownFKCounter.get(fkKey);
+						} else {
+							if (info != null) {
+								foreignKey += "." + quoting.unquote(pkTable.getUnqualifiedName());
+							}
+						}
+						String fkName = pkTable.getName() + "." + foreignKey;
+						
+						if (foreignKey != null && fkMap.containsKey(fkName)) {
+							if (fkColumn == null || pkColumn == null) {
+								toRemove.add(fkMap.get(fkName));
+							} else {
+								fkMap.get(fkName).appendCondition("A." + fkColumn + "=B." + pkColumn);
+							}
+						} else {
+							if (pkTable != null && fkTable != null) {
+								Association association = new Association(fkTable, pkTable, false, true, "A." + fkColumn + "=B." + pkColumn, dataModel, false, Cardinality.MANY_TO_ONE);
+								association.setAuthor(metaData.getDriverName());
+								associations.add(association);
+								fkMap.put(fkName, association);
+								if (foreignKey != null) {
+									namingSuggestion.put(association, new String[] { foreignKey, fkTable.getUnqualifiedName() + "." + foreignKey });
+								}
+								if (fkColumn == null || pkColumn == null) {
+									toRemove.add(association);
+								}
 							}
 						}
 					}
@@ -175,6 +275,8 @@ public class JDBCMetaDataBasedModelElementFinder implements ModelElementFinder {
 			resultSet.close();
 			CancellationHandler.checkForCancellation(null);
 		}
+		associations.removeAll(toRemove);
+		shutDownSessionsWithPermissionToReadSchema();
 		return associations;
 	}
 
@@ -219,6 +321,31 @@ public class JDBCMetaDataBasedModelElementFinder implements ModelElementFinder {
 		return table;
 	}
 	
+	private class UnderlyingTableInfo {
+		Table underlyingTable;
+		Map<String, String> columnMapping = new LinkedHashMap<String, String>();
+
+		@Override
+		public String toString() {
+			return "UnderlyingTableInfo [underlyingTable=" + underlyingTable + ", columnMapping=" + columnMapping + "]";
+		}
+
+		public void join() {
+			UnderlyingTableInfo u2TableInfo = underlyingTableInfos.get(underlyingTable.getName());
+			if (u2TableInfo != null) {
+				Map<String, String> newColumnMapping = new HashMap<String, String>();
+				for (Entry<String, String> e: u2TableInfo.columnMapping.entrySet()) {
+					String cMapped = columnMapping.get(e.getValue());
+					if (cMapped != null) {
+						newColumnMapping.put(e.getKey(), cMapped);
+					}
+				}
+				columnMapping = newColumnMapping;
+				underlyingTable = u2TableInfo.underlyingTable;
+			}
+		}
+	};
+
 	/**
 	 * Finds all tables in DB schema.
 	 * 
@@ -226,6 +353,28 @@ public class JDBCMetaDataBasedModelElementFinder implements ModelElementFinder {
 	 */
 	@Override
 	public Set<Table> findTables(Session session, ExecutionContext executionContext) throws Exception {
+		String introspectionSchema = session.getIntrospectionSchema();
+		String tableNamePattern = "%";
+
+		return findTables(session, executionContext, introspectionSchema, tableNamePattern, 0);
+	}
+
+	private Map<String, UnderlyingTableInfo> underlyingTableInfos = new LinkedHashMap<String, UnderlyingTableInfo>();
+	private Map<String, String> tableTypes = new HashMap<String, String>();
+
+	/**
+	 * Finds all tables in DB schema.
+	 * 
+	 * @param session the statement executor for executing SQL-statements
+	 * @param introspectionSchema the schema
+	 * @param tableNamePattern table name pattern 
+	 */
+	private Set<Table> findTables(Session session, ExecutionContext executionContext, String introspectionSchema,
+			String tableNamePattern, int depth) throws SQLException {
+		final int MAX_DEPTH = 100;
+		if (depth > MAX_DEPTH) {
+			return new HashSet<Table>();
+		}
 		PrimaryKeyFactory primaryKeyFactory = new PrimaryKeyFactory();
 		
 		Set<Table> tables = new HashSet<Table>();
@@ -233,14 +382,14 @@ public class JDBCMetaDataBasedModelElementFinder implements ModelElementFinder {
 		Quoting quoting = new Quoting(session);
 		ResultSet resultSet;
 		List<String> types = getTypes(executionContext);
-		resultSet = getTables(session, metaData, session.getIntrospectionSchema(), "%", types.toArray(new String[0]));
+		resultSet = getTables(session, metaData, introspectionSchema, tableNamePattern, types.toArray(new String[0]));
 		List<String> tableNames = new ArrayList<String>();
 		while (resultSet.next()) {
 			String tableName = resultSet.getString(3);
 			if (resultSet.getString(4) != null && types.contains(resultSet.getString(4).toUpperCase())) {
 				if (isValidName(tableName, session)) {
 					tableName = quoting.quote(tableName);
-					if (executionContext.getQualifyNames()) {
+					if (executionContext.getQualifyNames() || (depth > 0 && introspectionSchema != null && !introspectionSchema.equals(session.getIntrospectionSchema()))) {
 						String schemaName = resultSet.getString(DBMS.MySQL.equals(session.dbms)? 1 : 2);
 						if (schemaName != null) {
 							schemaName = quoting.quote(schemaName.trim());
@@ -250,6 +399,7 @@ public class JDBCMetaDataBasedModelElementFinder implements ModelElementFinder {
 						}
 					}
 					tableNames.add(tableName);
+					tableTypes.put(tableName, resultSet.getString(4).toUpperCase());
 					_log.info("found table " + tableName);
 				} else {
 					_log.info("skip table " + tableName);
@@ -261,7 +411,7 @@ public class JDBCMetaDataBasedModelElementFinder implements ModelElementFinder {
 		Map<String, Map<Integer, Column>> pkColumns = new HashMap<String, Map<Integer, Column>>();
 		for (String tableName: tableNames) {
 			Table tmp = new Table(tableName, null, false, false);
-			resultSet = getPrimaryKeys(session, metaData, quoting.unquote(tmp.getOriginalSchema(quoting.quote(session.getIntrospectionSchema()))), quoting.unquote(tmp.getUnqualifiedName()), true);
+			resultSet = getPrimaryKeys(session, metaData, quoting.unquote(tmp.getOriginalSchema(quoting.quote(introspectionSchema))), quoting.unquote(tmp.getUnqualifiedName()), true);
 			Map<Integer, Column> pk = pkColumns.get(tableName);
 			if (pk == null) {
 				pk = new HashMap<Integer, Column>();
@@ -280,7 +430,7 @@ public class JDBCMetaDataBasedModelElementFinder implements ModelElementFinder {
 			}
 			if (!hasPK) {
 				_log.info("find unique index of table " + tableName);
-				hasPK = findUniqueIndexBasedKey(metaData, quoting, session, tmp, pk);
+				hasPK = findUniqueIndexBasedKey(metaData, quoting, session, tmp, pk, tableTypes.get(tableName));
 			}
 			_log.info((hasPK? "" : "no ") + "primary key found for table " + tableName);
 			resultSet.close();
@@ -288,8 +438,8 @@ public class JDBCMetaDataBasedModelElementFinder implements ModelElementFinder {
 		}
 		for (String tableName: tableNames) {
 			Table tmp = new Table(tableName, null, false, false);
-			_log.info("getting columns for " + quoting.unquote(tmp.getOriginalSchema(quoting.quote(session.getIntrospectionSchema()))) + "." + quoting.unquote(tmp.getUnqualifiedName()));
-			resultSet = getColumns(session, metaData, quoting.unquote(tmp.getOriginalSchema(quoting.quote(session.getIntrospectionSchema()))), quoting.unquote(tmp.getUnqualifiedName()), "%", true);
+			_log.info("getting columns for " + quoting.unquote(tmp.getOriginalSchema(quoting.quote(introspectionSchema))) + "." + quoting.unquote(tmp.getUnqualifiedName()));
+			resultSet = getColumns(session, metaData, quoting.unquote(tmp.getOriginalSchema(quoting.quote(introspectionSchema))), quoting.unquote(tmp.getUnqualifiedName()), tableNamePattern, true, tableTypes.get(tableName));
 			_log.info("done");
 			Map<Integer, Column> pk = pkColumns.get(tableName);
 			while (resultSet.next()) {
@@ -349,9 +499,299 @@ public class JDBCMetaDataBasedModelElementFinder implements ModelElementFinder {
 			CancellationHandler.checkForCancellation(null);
 		}
 
+		for (Table table: tables) {
+			String viewText = null;
+			String viewTextOrDDLQuery = session.dbms.getViewTextOrDDLQuery();
+			if ("VIEW".equals(tableTypes.get(table.getName())) && viewTextOrDDLQuery != null) {
+				String viewTextQuery = String.format(viewTextOrDDLQuery, introspectionSchema, table.getUnqualifiedName());
+				final String[] viewTextContainer = new String[1];
+				try {
+					session.executeQuery(viewTextQuery, new Session.AbstractResultSetReader() {
+						@Override
+						public void readCurrentRow(ResultSet resultSet) throws SQLException {
+							viewTextContainer[0] = resultSet.getString(1);
+						}
+					});
+					viewText = viewTextContainer[0];
+					if (viewText != null) {
+						viewText = viewText.trim();
+						viewText = viewText.replaceFirst("(?is)^create.*as\\b(\\W*select\\b)(.*)$", "$1$2").trim();
+					}
+				} catch (Exception e) {
+					_log.info("can't get view text: " + viewTextQuery);
+					_log.info(e.getMessage());
+				}
+			} else if ("SYNONYM".equals(tableTypes.get(table.getName())) || "ALIAS".equals(tableTypes.get(table.getName()))) {
+				if (session.dbms.getSynonymTableQuery() != null) {
+					String synonymTableQuery = String.format(session.dbms.getSynonymTableQuery(), introspectionSchema, table.getUnqualifiedName());
+					final String[] synonymTableQueryContainer = new String[1];
+					try {
+						session.executeQuery(synonymTableQuery, new Session.AbstractResultSetReader() {
+							@Override
+							public void readCurrentRow(ResultSet resultSet) throws SQLException {
+								synonymTableQueryContainer[0] = "Select * from " + resultSet.getString(1);
+							}
+						});
+						viewText = synonymTableQueryContainer[0];
+					} catch (Exception e) {
+						_log.info("can't get synonym table: " + synonymTableQuery);
+						_log.info(e.getMessage());
+					}
+				}
+			} else {
+				continue;
+			}
+			
+			if (viewText != null) {
+				UnderlyingTableInfo uti = parseViewText(session, executionContext, quoting, depth, viewText, introspectionSchema, table);
+				if (uti != null) {
+					List<Column> columns = findColumns(table, session, executionContext);
+					uti.join();
+					if (table.primaryKey.getColumns().isEmpty()) {
+						if (uti.underlyingTable.primaryKey != null && !uti.underlyingTable.primaryKey.getColumns().isEmpty()) {
+							List<Column> newPK = new ArrayList<Column>();
+							for (Column pkc: uti.underlyingTable.primaryKey.getColumns()) {
+								String newPkc = uti.columnMapping.get(quoting.normalizeCase(Quoting.staticUnquote(pkc.name)));
+								if (newPkc != null) {
+									Column newC = null;
+									for (Column c: columns) {
+										if (Quoting.equalsIgnoreQuotingAndCase(c.name, newPkc)) {
+											newC = c;
+											break;
+										}
+									}
+									if (newC != null) {
+										newPK.add(newC);
+									} else {
+										newPK = null;
+									}
+								} else {
+									newPK = null;
+									break;
+								}
+							}
+							if (newPK != null) {
+								table.primaryKey.assign(newPK);
+							}
+						}
+					}
+				}
+			}
+		}
+		
 		return tables;
 	}
 
+	private UnderlyingTableInfo parseViewText(final Session session, final ExecutionContext executionContext, final Quoting quoting, final int depth, String viewText, final String defaultSchema, final Table view) {
+		net.sf.jsqlparser.statement.Statement st;
+		try {
+			_log.info("analyzing view \"" + view.getName() + "\": " + viewText.replaceAll("\\s+", " "));
+			final List<Column> columns = findColumns(view, session, executionContext);
+			final boolean[] isValid = new boolean[] { true };
+			final boolean[] selectExists = new boolean[] { false };
+			final UnderlyingTableInfo underlyingTableInfo = new UnderlyingTableInfo();
+			st = CCJSqlParserUtil.parse(viewText);
+			st.accept(new StatementVisitor() {
+				@Override
+				public void visit(Upsert arg0) {
+				}
+				@Override
+				public void visit(Select select) {
+					select.getSelectBody().accept(new SelectVisitor() {
+						@Override
+						public void visit(WithItem withItem) {
+							isValid[0] = false;
+						}
+						@Override
+						public void visit(SetOperationList setOpList) {
+							isValid[0] = false;
+						}
+						@Override
+						public void visit(PlainSelect plainSelect) {
+							if (plainSelect.getFromItem() != null && plainSelect.getJoins() == null) {
+								selectExists[0] = true;
+								for (SelectItem sItem: plainSelect.getSelectItems()) {
+									sItem.accept(new SelectItemVisitor() {
+										@Override
+										public void visit(SelectExpressionItem eItem) {
+											Expression expression = eItem.getExpression();
+											if (expression instanceof net.sf.jsqlparser.schema.Column) {
+												String column = ((net.sf.jsqlparser.schema.Column) expression).getColumnName();
+												column = Quoting.staticUnquote(column);
+												String alias = column;
+												if (eItem.getAlias() != null) {
+													if (eItem.getAlias().getName() != null) {
+														alias = Quoting.staticUnquote(eItem.getAlias().getName());
+													}
+												}
+												underlyingTableInfo.columnMapping.put(quoting.normalizeCase(Quoting.staticUnquote(column)), quoting.normalizeCase(Quoting.staticUnquote(alias)));
+											}
+										}
+										@Override
+										public void visit(AllTableColumns arg0) {
+											for (Column column: columns) {
+												underlyingTableInfo.columnMapping.put(quoting.normalizeCase(Quoting.staticUnquote(column.name)), quoting.normalizeCase(Quoting.staticUnquote(column.name)));
+											}
+										}
+										@Override
+										public void visit(AllColumns arg0) {
+											for (Column column: columns) {
+												underlyingTableInfo.columnMapping.put(quoting.normalizeCase(Quoting.staticUnquote(column.name)), quoting.normalizeCase(Quoting.staticUnquote(column.name)));
+											}
+										}
+									});
+								}
+								FromItemVisitor fromItemVisitor = new FromItemVisitor() {
+									private void unknownTable() {
+										isValid[0] = false;
+										selectExists[0] = false;
+									}
+									@Override
+									public void visit(TableFunction tableFunction) {
+										unknownTable();
+									}
+									
+									@Override
+									public void visit(ValuesList valuesList) {
+										unknownTable();
+									}
+									
+									@Override
+									public void visit(LateralSubSelect lateralSubSelect) {
+										unknownTable();
+									}
+									
+									@Override
+									public void visit(SubJoin subjoin) {
+										unknownTable();
+									}
+									
+									@Override
+									public void visit(SubSelect subSelect) {
+										unknownTable();
+									}
+									
+									@Override
+									public void visit(net.sf.jsqlparser.schema.Table tableName) {
+										String schema = Quoting.staticUnquote(tableName.getSchemaName());
+										if (schema == null) {
+											schema = defaultSchema;
+										}
+										String name = Quoting.staticUnquote(tableName.getName());
+										if (tableName.getPivot() != null) {
+											unknownTable();
+										} else {
+											try {
+												Session theSession = session;
+												while (theSession != null) {
+													Quoting quoting = new Quoting(theSession);
+													Set<Table> tables = findTables(theSession, executionContext, quoting.normalizeCase(schema), quoting.normalizeCase(name), depth + 1);
+													if (tables.size() < 1) {
+														tables = findTables(theSession, executionContext, schema, name, depth + 1);
+													}
+													if (tables.size() >= 1) {
+														underlyingTableInfo.underlyingTable = tables.iterator().next();
+														break;
+													} else {
+														if (session == theSession && Quoting.equalsIgnoreQuotingAndCase(theSession.getIntrospectionSchema(), schema)
+															||
+															checkReadPermission(theSession, schema)
+															|| checkReadPermission(theSession, quoting.normalizeCase(schema))) {
+																_log.warn("View or Synonym \"" + view.getName() + "\": can't find underlying table \"" + schema + "." + name + "\"");
+																break;
+														} else {
+															Session newSession = sessionWithPermissionToReadSchema.get(Quoting.normalizeIdentifier(schema));
+															if (newSession != null && newSession != theSession) {
+																theSession = newSession;
+															} else {
+																theSession = askForSessionWithPermissionToReadSchema(session, view, Quoting.normalizeIdentifier(schema), quoting.normalizeCase(schema), quoting.normalizeCase(name), executionContext);
+																if (theSession == null) {
+																	_log.warn("Insufficient privileges to analyze table \"" + schema + "." + name + "\"");
+																}
+															}
+														}
+													}
+												}
+											} catch (SQLException e) {
+												_log.error("paring failed", e);
+											}
+										}
+									}
+									@Override
+									public void visit(ParenthesisFromItem aThis) {
+										if (aThis.getFromItem() != null) {
+											aThis.getFromItem().accept(this);
+										}
+									}
+								};
+								plainSelect.getFromItem().accept(fromItemVisitor);
+							}
+						}
+					});
+				}
+				@Override
+				public void visit(Merge arg0) {
+				}
+				@Override
+				public void visit(SetStatement arg0) {
+				}
+				@Override
+				public void visit(Execute arg0) {
+				}
+				@Override
+				public void visit(Statements arg0) {
+				}
+				@Override
+				public void visit(Alter arg0) {
+				}
+				@Override
+				public void visit(AlterView arg0) {
+				}
+				@Override
+				public void visit(CreateView arg0) {
+				}
+				@Override
+				public void visit(CreateTable arg0) {
+				}
+				@Override
+				public void visit(CreateIndex arg0) {
+				}
+				@Override
+				public void visit(Truncate arg0) {
+				}
+				@Override
+				public void visit(Drop arg0) {
+				}
+				@Override
+				public void visit(Replace arg0) {
+				}
+				@Override
+				public void visit(Insert arg0) {
+				}
+				@Override
+				public void visit(Update arg0) {
+				}
+				@Override
+				public void visit(Delete arg0) {
+				}
+				@Override
+				public void visit(Commit arg0) {
+				}
+				@Override
+				public void visit(UseStatement use) {
+				}
+			});
+			if (isValid[0] && selectExists[0] && underlyingTableInfo.underlyingTable != null) {
+				underlyingTableInfos.put(view.getName(), underlyingTableInfo);
+				return underlyingTableInfo;
+			}
+		} catch (Exception e) {
+			_log.info("can't parse view definition");
+			_log.info(e.getMessage());
+		}
+		return null;
+	}
+
 	private List<String> getTypes(ExecutionContext executionContext) {
 		ArrayList<String> result = new ArrayList<String>();
 		result.add("TABLE");
@@ -395,10 +835,11 @@ public class JDBCMetaDataBasedModelElementFinder implements ModelElementFinder {
 
 	/**
 	 * Find a key of a table based on an unique index on non-nullable columns.
+	 * @param string 
 	 */
-	private boolean findUniqueIndexBasedKey(DatabaseMetaData metaData, Quoting quoting, Session session, Table tmp, Map<Integer, Column> pk) {
+	private boolean findUniqueIndexBasedKey(DatabaseMetaData metaData, Quoting quoting, Session session, Table tmp, Map<Integer, Column> pk, String tableType) {
 		try {
-			ResultSet resultSet = getColumns(session, metaData, quoting.unquote(tmp.getOriginalSchema(quoting.quote(session.getIntrospectionSchema()))), quoting.unquote(tmp.getUnqualifiedName()), "%", true);
+			ResultSet resultSet = getColumns(session, metaData, quoting.unquote(tmp.getOriginalSchema(quoting.quote(session.getIntrospectionSchema()))), quoting.unquote(tmp.getUnqualifiedName()), "%", true, tableType);
 			
 			List<String> nonNullColumns = new ArrayList<String>();
 			boolean hasNullable = false;
@@ -470,22 +911,22 @@ public class JDBCMetaDataBasedModelElementFinder implements ModelElementFinder {
 				}
 			}
 			
-			if (!hasNullable) {
-				if (nonNullColumns.size() <= 6) {
-					for (int i = 1; i <= nonNullColumns.size(); ++i) {
-						pk.put(i, new Column(quoting.quote(nonNullColumns.get(i - 1)), "", 0, -1));
-					}
-					return true;
-				}
-			}
-			
+//			if (!hasNullable && "TABLE".equalsIgnoreCase(tableType)) {
+//				if (nonNullColumns.size() <= 6) {
+//					for (int i = 1; i <= nonNullColumns.size(); ++i) {
+//						pk.put(i, new Column(quoting.quote(nonNullColumns.get(i - 1)), "", 0, -1));
+//					}
+//					return true;
+//				}
+//			}
+//			
 			return false;
 		} catch (Exception e) {
 			_log.error(e.getMessage(), e);
 			return false;
 		}
 	}
-	
+
 	private ResultSet getIndexInfo(Session session, DatabaseMetaData metaData, String schema, String table, boolean unique, boolean approximate) throws SQLException {
 		final String NAME = "getIndexInfo " + schema;
 		MetaDataCache metaDataCache = (MetaDataCache) session.getSessionProperty(JDBCMetaDataBasedModelElementFinder.class, NAME);
@@ -518,38 +959,63 @@ public class JDBCMetaDataBasedModelElementFinder implements ModelElementFinder {
 	 * Calls {@link DatabaseMetaData#getColumns(String, String, String, String)}. Uses schemaPattern as catalogPattern on MySQL.
 	 * @param withCaching 
 	 */
-	public static ResultSet getColumns(Session session, DatabaseMetaData metaData, String schemaPattern, String tableNamePattern, String columnNamePattern, boolean withCaching) throws SQLException {
-		if (withCaching) {
-			synchronized (session) {
-				final String NAME = "getColumns " + schemaPattern;
-				MetaDataCache metaDataCache = (MetaDataCache) session.getSessionProperty(JDBCMetaDataBasedModelElementFinder.class, NAME);
-				if (metaDataCache == null) {
-					metaDataCache = MetaDataCache.readColumns(session, metaData, schemaPattern);
-					session.setSessionProperty(JDBCMetaDataBasedModelElementFinder.class, NAME, metaDataCache);
-				}
-				ResultSet resultSet = metaDataCache.forTable(tableNamePattern);
-				if (resultSet != null) {
-					return resultSet;
-				}
+	public static ResultSet getColumns(Session session, DatabaseMetaData metaData, String schemaPattern, String tableNamePattern, String columnNamePattern, boolean withCaching, String tableType) throws SQLException {
+		boolean includeSynonym = false;
+		if (DBMS.ORACLE.equals(session.dbms)) {
+			if ("ALIAS".equalsIgnoreCase(tableType) || "SYNONYM".equalsIgnoreCase(tableType)) {
+				includeSynonym = true;
 			}
-		}
-		if (DBMS.MySQL.equals(session.dbms)) {
-			return metaData.getColumns(schemaPattern, null, tableNamePattern, columnNamePattern);
+			includeSynonym = setIncludeSynonyms(includeSynonym, session);
 		}
 		try {
-			return metaData.getColumns(null, schemaPattern, tableNamePattern, columnNamePattern);
-		} catch (Exception e) {
-			String catalogs = "";
-			try {
-				ResultSet r = metaData.getCatalogs();
-				while (r.next()) {
-					catalogs += r.getString(1) + "  ";
+			if (withCaching) {
+				synchronized (session) {
+					final String NAME = "getColumns " + includeSynonym + " " + schemaPattern;
+					MetaDataCache metaDataCache = (MetaDataCache) session.getSessionProperty(JDBCMetaDataBasedModelElementFinder.class, NAME);
+					if (metaDataCache == null) {
+						metaDataCache = MetaDataCache.readColumns(session, metaData, schemaPattern);
+						session.setSessionProperty(JDBCMetaDataBasedModelElementFinder.class, NAME, metaDataCache);
+					}
+					ResultSet resultSet = metaDataCache.forTable(tableNamePattern);
+					if (resultSet != null) {
+						return resultSet;
+					}
 				}
-				r.close();
-			} catch (Exception e2) {
-				catalogs += "?";
 			}
-			throw new RuntimeException("Error in getColumns(): catalogs= " + catalogs + ", schemaPattern=" + schemaPattern + ", tableNamePattern=" + tableNamePattern + ", columnNamePattern=" + columnNamePattern, e);
+			if (DBMS.MySQL.equals(session.dbms)) {
+				return metaData.getColumns(schemaPattern, null, tableNamePattern, columnNamePattern);
+			}
+			try {
+				return metaData.getColumns(null, schemaPattern, tableNamePattern, columnNamePattern);
+			} catch (Exception e) {
+				String catalogs = "";
+				try {
+					ResultSet r = metaData.getCatalogs();
+					while (r.next()) {
+						catalogs += r.getString(1) + "  ";
+					}
+					r.close();
+				} catch (Exception e2) {
+					catalogs += "?";
+				}
+				throw new RuntimeException("Error in getColumns(): catalogs= " + catalogs + ", schemaPattern=" + schemaPattern + ", tableNamePattern=" + tableNamePattern + ", columnNamePattern=" + columnNamePattern, e);
+			}
+		} finally {
+			if (DBMS.ORACLE.equals(session.dbms)) {
+				if (includeSynonym) {
+					setIncludeSynonyms(false, session);
+				}
+			}
+		}
+	}
+
+	private static boolean setIncludeSynonyms(boolean includeSynonyms, Session session) {
+		try {
+			Connection con = session.getConnection();
+			con.getClass().getClassLoader().loadClass("oracle.jdbc.OracleConnection").getMethod("setIncludeSynonyms", new Class[] { boolean.class }).invoke(con, includeSynonyms);
+			return includeSynonyms;
+		} catch (Throwable t) {
+			return false;
 		}
 	}
 
@@ -647,7 +1113,9 @@ public class JDBCMetaDataBasedModelElementFinder implements ModelElementFinder {
 					return schema;
 				}
 				if (schema.equalsIgnoreCase(userName.trim())) {
-					userSchema = schema;
+					if (userSchema == null || !userSchema.equals(userName.trim())) {
+						userSchema = schema;
+					}
 				}
 			}
 			if (userSchema != null) {
@@ -672,7 +1140,7 @@ public class JDBCMetaDataBasedModelElementFinder implements ModelElementFinder {
 	 * @throws Exception on each error
 	 */
 	@Override
-	public List<Column> findColumns(Table table, Session session, ExecutionContext executionContext) throws Exception {
+	public List<Column> findColumns(Table table, Session session, ExecutionContext executionContext) throws SQLException {
 		List<Column> columns = new ArrayList<Column>();
 		DatabaseMetaData metaData = session.getMetaData();
 		Quoting quoting = new Quoting(session);
@@ -685,7 +1153,7 @@ public class JDBCMetaDataBasedModelElementFinder implements ModelElementFinder {
 		String schemaName = quoting.unquote(table.getOriginalSchema(defaultSchema));
 		String tableName = quoting.unquote(table.getUnqualifiedName());
 		_log.info("getting columns for " + table.getOriginalSchema(defaultSchema) + "." + tableName);
-		ResultSet resultSet = getColumns(session, metaData, schemaName, tableName, "%", true);
+		ResultSet resultSet = getColumns(session, metaData, schemaName, tableName, "%", true, tableTypes.get(table.getName()));
 		_log.info("done");
 		while (resultSet.next()) {
 			String colName = quoting.quote(resultSet.getString(4));
@@ -906,6 +1374,56 @@ public class JDBCMetaDataBasedModelElementFinder implements ModelElementFinder {
 		session.removeSessionProperties(JDBCMetaDataBasedModelElementFinder.class);
 	}
 
+	private Map<String, Session> sessionWithPermissionToReadSchema = new HashMap<String, Session>();
+	
+	private void shutDownSessionsWithPermissionToReadSchema() {
+		for (Session s: sessionWithPermissionToReadSchema.values()) {
+			try {
+				s.shutDown();
+			} catch (SQLException e) {
+				_log.warn(e.getMessage());
+			}
+		}
+		sessionWithPermissionToReadSchema.clear();
+	}
+	
+	public static interface PrivilegedSessionProvider {
+		Session askForSessionWithPermissionToReadSchema(Session session, Table view, String schema, String tableName, ExecutionContext executionContext);
+	};
+	
+	public static PrivilegedSessionProvider privilegedSessionProvider;
+	
+	private Session askForSessionWithPermissionToReadSchema(Session session, Table view, String schemaID, String schema, String tableName, ExecutionContext executionContext) {
+		if (privilegedSessionProvider == null) {
+			return null;
+		}
+		
+		if (Quoting.equalsIgnoreQuotingAndCase(session.getIntrospectionSchema(), schema)) {
+			return null;
+		}
+		
+		Session newSession = privilegedSessionProvider.askForSessionWithPermissionToReadSchema(session, view, schema, tableName, executionContext);
+		
+		if (newSession != null) {
+			Session s = sessionWithPermissionToReadSchema.get(schemaID);
+			if (s != null) {
+				try {
+					s.shutDown();
+				} catch (SQLException e) {
+					// ignore
+				}
+				sessionWithPermissionToReadSchema.remove(schemaID);
+			}
+			sessionWithPermissionToReadSchema.put(schemaID, newSession);
+		}
+		
+		return newSession;
+	}
+
+	private boolean checkReadPermission(Session theSession, String schema) {
+		return false;
+	}
+
 	/**
 	 * Gets description.
 	 */

src/main/engine/net/sf/jailer/modelbuilder/MetaDataCache.java

@@ -76,7 +76,7 @@ public class MetaDataCache {
 		MetaDataCache metaDataCache = new MetaDataCache();
 		try {
 			Set<Integer> intIndex = new HashSet<Integer>(Arrays.asList(5));
-			readMetaData(metaDataCache, session, primaryKeysQuery.replace("${SCHEMA}", schema), intIndex);
+			readMetaData(metaDataCache, session, primaryKeysQuery.replace("${SCHEMA}", schema), intIndex, 2);
 			return metaDataCache;
 		} catch (Exception e) {
 			_log.info(e.getMessage());
@@ -104,7 +104,7 @@ public class MetaDataCache {
 		MetaDataCache metaDataCache = new MetaDataCache();
 		try {
 			Set<Integer> intIndex = new HashSet<Integer>(Arrays.asList(4));
-			readMetaData(metaDataCache, session, indexInfoQuery.replace("${SCHEMA}", schema), intIndex);
+			readMetaData(metaDataCache, session, indexInfoQuery.replace("${SCHEMA}", schema), intIndex, 2);
 			return metaDataCache;
 		} catch (Exception e) {
 			_log.info(e.getMessage());
@@ -132,7 +132,7 @@ public class MetaDataCache {
 		MetaDataCache metaDataCache = new MetaDataCache();
 		try {
 			Set<Integer> intIndex = new HashSet<Integer>(Arrays.asList(9, 10, 11, 14));
-			readMetaData(metaDataCache, session, importedKeysQuery.replace("${SCHEMA}", schema), intIndex);
+			readMetaData(metaDataCache, session, importedKeysQuery.replace("${SCHEMA}", schema), intIndex, 6);
 			return metaDataCache;
 		} catch (Exception e) {
 			_log.info(e.getMessage());
@@ -226,7 +226,7 @@ public class MetaDataCache {
 	 * Reads meta data.
 	 */
 	private static void readMetaData(final MetaDataCache metaDataCache, Session session, String query,
-			final Set<Integer> intIndex) throws SQLException {
+			final Set<Integer> intIndex, final int tableIndex) throws SQLException {
 		metaDataCache.cache = new HashMap<String, List<Object[]>>();
 		boolean wasSilent = session.getSilent();
 		session.setSilent(true);
@@ -243,7 +243,7 @@ public class MetaDataCache {
 							row[i - 1] = resultSet.getString(i);
 						}
 					}
-					String table = (String) row[2];
+					String table = (String) row[tableIndex];
 					List<Object[]> rowList = metaDataCache.cache.get(table);
 					if (rowList == null) {
 						rowList = new LinkedList<Object[]>();

src/main/engine/net/sf/jailer/restrictionmodel/RestrictionModel.java

@@ -270,6 +270,11 @@ public class RestrictionModel {
 			}
 			restriction.put(association, condition);
 		}
+		if (!association.isIgnored()) {
+			if (association.hasNullableFK() && association.fkHasNullFilter()) {
+				association.setOrResetFKNullFilter(false);
+			}
+		}
 	}
 
 	/**

src/main/engine/net/sf/jailer/script/mysql/update_statistics.sql

@@ -1,5 +1,5 @@
 -- keeps DB-statistic up-to-date for the following tables:
--- JAILER_ENTITY
--- JAILER_GRAPH
--- JAILER_DEPENDENCY
--- JAILER_SET
+ANALYZE TABLE ${JAILER_ENTITY};
+ANALYZE TABLE ${JAILER_GRAPH};
+ANALYZE TABLE ${JAILER_DEPENDENCY};
+ANALYZE TABLE ${JAILER_SET};

src/main/engine/net/sf/jailer/util/CsvFile.java

@@ -245,10 +245,11 @@ public class CsvFile {
 	 * @return decoded and splitted line
 	 */
 	public static String[] decodeLine(String line) {
-		List<String> cells = new ArrayList<String>();
-		StringBuilder sb = new StringBuilder();
+		List<String> cells = new ArrayList<String>(1000);
+		StringBuilder sb = new StringBuilder(1000);
 		boolean esc = false;
-		for (int i = 0; i < line.length(); ++i) {
+		int length = line.length();
+		for (int i = 0; i < length; ++i) {
 			char c = line.charAt(i);
 			if (c == '\\') {
 				if (esc) {

src/main/engine/net/sf/jailer/util/Quoting.java

@@ -25,6 +25,7 @@ import java.util.Map;
 import java.util.Set;
 
 import net.sf.jailer.ExecutionContext;
+import net.sf.jailer.configuration.Configuration;
 import net.sf.jailer.database.Session;
 import net.sf.jailer.datamodel.Table;
 
@@ -96,17 +97,22 @@ public class Quoting {
 		}
 		
 		String k = metaData.getSQLKeywords();
-		if (k != null) {
-			keyWords = keyWordsMap.get(k);
-			if (keyWords == null) {
-				keyWords = new HashSet<String>();
-				for (String key : k.split(",")) {
-					keyWords.add(key.trim().toUpperCase());
-				}
-				// add all SQL 92 keywords
-				keyWords.addAll(UCSQL92KEYWORDS);
-				keyWordsMap.put(k, keyWords);
+		if (k == null) {
+			k = "";
+		}
+		keyWords = keyWordsMap.get(k);
+		if (keyWords == null) {
+			keyWords = new HashSet<String>();
+			String additionalKeyWords = Configuration.getInstance().getAdditionalSQLKeywords();
+			if (additionalKeyWords != null) {
+				k += "," + additionalKeyWords;
 			}
+			for (String key : k.split(",")) {
+				keyWords.add(key.trim().toUpperCase());
+			}
+			// add all SQL 92 keywords
+			keyWords.addAll(UCSQL2003KEYWORDS);
+			keyWordsMap.put(k, keyWords);
 		}
 	}
 
@@ -242,6 +248,9 @@ public class Quoting {
 	private static boolean isQuoted(String identifier, String qu) {
 		if (identifier != null && identifier.length() > 1) {
 			String q = identifier.substring(0, 1);
+			if (q.equals("[") && identifier.endsWith("]")) {
+				return true;
+			}
 			if (identifier.endsWith(q)) {
 				char c = q.charAt(0);
 				if (q.equals(qu) || isPotentialIdentifierQuote(c)) {
@@ -281,6 +290,19 @@ public class Quoting {
 		return staticUnquote(identifier).toUpperCase(Locale.ENGLISH);
 	}
 
+	public String normalizeCase(String identifier) {
+		if (identifier == null) {
+			return null;
+		}
+		if (unquotedIdentifierInMixedCase) {
+			return identifier;
+		}
+		if (unquotedIdentifierInUpperCase) {
+			return identifier.toUpperCase();
+		}
+		return identifier.toLowerCase();
+	}
+	
 	/**
 	 * Compares a String to another String, ignoring case considerations and quoting.
 	 * 
@@ -298,51 +320,420 @@ public class Quoting {
 		return staticUnquote(a).equalsIgnoreCase(staticUnquote(b));
 	}
 
-	public static final HashSet<String> UCSQL92KEYWORDS = new HashSet<String>(Arrays.asList(new String[] { "ABSOLUTE", "ACTION",
-			"ADD", "ALL", "ALLOCATE", "ALTER", "AND", "ANY", "ARE", "AS",
-			"ASC", "ASSERTION", "AT", "AUTHORIZATION", "AVG", "BEGIN",
-			"BETWEEN", "BIT", "BIT_LENGTH", "BOTH", "BY", "CALL",
-			"CASCADE", "CASCADED", "CASE", "CAST", "CATALOG", "CHAR",
-			"CHARACTER", "CHARACTER_LENGTH", "CHAR_LENGTH", "CHECK",
-			"CLOSE", "COALESCE", "COLLATE", "COLLATION", "COLUMN",
-			"COMMIT", "CONDITION", "CONNECT", "CONNECTION", "CONSTRAINT",
-			"CONSTRAINTS", "CONTAINS", "CONTINUE", "CONVERT",
-			"CORRESPONDING", "COUNT", "CREATE", "CROSS", "CURRENT",
-			"CURRENT_DATE", "CURRENT_PATH", "CURRENT_TIME",
-			"CURRENT_TIMESTAMP", "CURRENT_USER", "CURSOR", "DATE", "DATETIME", "DAY",
-			"DEALLOCATE", "DEC", "DECIMAL", "DECLARE", "DEFAULT",
-			"DEFERRABLE", "DEFERRED", "DELETE", "DESC", "DESCRIBE",
-			"DESCRIPTOR", "DETERMINISTIC", "DIAGNOSTICS", "DISCONNECT",
-			"DISTINCT", "DO", "DOMAIN", "DOUBLE", "DROP", "ELSE", "ELSEIF",
-			"END", "ESCAPE", "EXCEPT", "EXCEPTION", "EXEC", "EXECUTE",
-			"EXISTS", "EXIT", "EXTERNAL", "EXTRACT", "FALSE", "FETCH",
-			"FIRST", "FLOAT", "FOR", "FOREIGN", "FOUND", "FROM", "FULL",
-			"FUNCTION", "GET", "GLOBAL", "GO", "GOTO", "GRANT", "GROUP",
-			"HANDLER", "HAVING", "HOUR", "IDENTITY", "IF", "IMMEDIATE",
-			"IN", "INDICATOR", "INITIALLY", "INNER", "INOUT", "INPUT",
-			"INSENSITIVE", "INSERT", "INT", "INTEGER", "INTERSECT",
-			"INTERVAL", "INTO", "IS", "ISOLATION", "JOIN", "KEY",
-			"LAST", "LEADING", "LEAVE", "LEFT", "LEVEL",
-			"LIKE", "LOCAL", "LOOP", "LOWER", "MATCH", "MAX", "MIN",
-			"MINUTE", "MODULE", "MONTH", "NAMES", "NATIONAL", "NATURAL",
-			"NCHAR", "NEXT", "NO", "NOT", "NULL", "NULLIF", "NUMERIC",
-			"OCTET_LENGTH", "OF", "ON", "ONLY", "OPEN", "OPTION", "OR",
-			"ORDER", "OUT", "OUTER", "OUTPUT", "OVERLAPS", "PAD",
-			"PARAMETER", "PARTIAL", "PATH", "POSITION", "PRECISION",
-			"PREPARE", "PRESERVE", "PRIMARY", "PRIOR", "PRIVILEGES",
-			"PROCEDURE", "READ", "REAL", "REFERENCES",
-			"RELATIVE", "REPEAT", "RESIGNAL", "RESTRICT", "RETURN",
-			"RETURNS", "REVOKE", "RIGHT", "ROLLBACK", "ROUTINE", "ROWS",
-			"SCHEMA", "SCROLL", "SECOND", "SECTION", "SELECT", "SESSION",
-			"SESSION_USER", "SET", "SIGNAL", "SIZE", "SMALLINT", "SOME",
-			"SPACE", "SPECIFIC", "SQL", "SQLCODE", "SQLERROR",
-			"SQLEXCEPTION", "SQLSTATE", "SQLWARNING", "SUBSTRING", "SUM",
-			"SYSTEM_USER", "TABLE", "TEMPORARY", "THEN", "TIME",
-			"TIMESTAMP", "TIMEZONE_HOUR", "TIMEZONE_MINUTE", "TO",
-			"TRAILING", "TRANSACTION", "TRANSLATE", "TRANSLATION", "TRIM",
-			"TRUE", "UNDO", "UNION", "UNIQUE", "UNKNOWN", "UNTIL",
-			"UPDATE", "UPPER", "USAGE", "USER", "USING", "VALUE", "VALUES",
-			"VARCHAR", "VARYING", "VIEW", "VIRTUAL", "WHEN", "WHENEVER", "WHERE",
-			"WHILE", "WITH", "WORK", "WRITE", "YEAR", "ZONE" }));
+	public static final HashSet<String> UCSQL2003KEYWORDS = new HashSet<String>(Arrays.asList(new String[] {
+			"ABS",
+			"ABSOLUTE",
+			"ACTION",
+			"ADD",
+			"ADMIN",
+			"AFTER",
+			"AGGREGATE",
+			"ALIAS",
+			"ALL",
+			"ALLOCATE",
+			"ALTER",
+			"ANALYSE",
+			"ANALYZE",
+			"AND",
+			"ANY",
+			"ARE",
+			"ARRAY",
+			"AS",
+			"ASC",
+			"ASENSITIVE",
+			"ASSERTION",
+			"ASYMMETRIC",
+			"AT",
+			"ATOMIC",
+			"AUTHORIZATION",
+			"AVG",
+			"BEFORE",
+			"BEGIN",
+			"BETWEEN",
+			"BIGINT",
+			"BINARY",
+			"BIT",
+			"BIT_LENGTH",
+			"BLOB",
+			"BOOLEAN",
+			"BOTH",
+			"BREADTH",
+			"BY",
+			"CALL",
+			"CALLED",
+			"CARDINALITY",
+			"CASCADE",
+			"CASCADED",
+			"CASE",
+			"CAST",
+			"CATALOG",
+			"CEIL",
+			"CEILING",
+			"CHAR",
+			"CHARACTER",
+			"CHARACTER_LENGTH",
+			"CHAR_LENGTH",
+			"CHECK",
+			"CLASS",
+			"CLOB",
+			"CLOSE",
+			"COALESCE",
+			"COLLATE",
+			"COLLATION",
+			"COLLECT",
+			"COLUMN",
+			"COMMIT",
+			"COMPLETION",
+			"CONDITION",
+			"CONNECT",
+			"CONNECTION",
+			"CONSTRAINT",
+			"CONSTRAINTS",
+			"CONSTRUCTOR",
+			"CONTINUE",
+			"CONVERT",
+			"CORR",
+			"CORRESPONDING",
+			"COUNT",
+			"COVAR_POP",
+			"COVAR_SAMP",
+			"CREATE",
+			"CROSS",
+			"CUBE",
+			"CUME_DIST",
+			"CURRENT",
+			"CURRENT_DATE",
+			"CURRENT_DEFAULT_TRANSFORM_GROUP",
+			"CURRENT_PATH",
+			"CURRENT_ROLE",
+			"CURRENT_TIME",
+			"CURRENT_TIMESTAMP",
+			"CURRENT_TRANSFORM_GROUP_FOR_TYPE",
+			"CURRENT_USER",
+			"CURSOR",
+			"CYCLE",
+			"DATA",
+			"DATE",
+			"DAY",
+			"DEALLOCATE",
+			"DEC",
+			"DECIMAL",
+			"DECLARE",
+			"DEFAULT",
+			"DEFERRABLE",
+			"DEFERRED",
+			"DELETE",
+			"DENSE_RANK",
+			"DEPTH",
+			"DEREF",
+			"DESC",
+			"DESCRIBE",
+			"DESCRIPTOR",
+			"DESTROY",
+			"DESTRUCTOR",
+			"DETERMINISTIC",
+			"DIAGNOSTICS",
+			"DICTIONARY",
+			"DISCONNECT",
+			"DISTINCT",
+			"DO",
+			"DOMAIN",
+			"DOUBLE",
+			"DROP",
+			"DYNAMIC",
+			"EACH",
+			"ELEMENT",
+			"ELSE",
+			"END",
+			"END-EXEC",
+			"EQUALS",
+			"ESCAPE",
+			"EVERY",
+			"EXCEPT",
+			"EXCEPTION",
+			"EXEC",
+			"EXECUTE",
+			"EXISTS",
+			"EXP",
+			"EXTERNAL",
+			"EXTRACT",
+			"FALSE",
+			"FETCH",
+			"FILTER",
+			"FIRST",
+			"FLOAT",
+			"FLOOR",
+			"FOR",
+			"FOREIGN",
+			"FOUND",
+			"FREE",
+			"FREEZE",
+			"FROM",
+			"FULL",
+			"FUNCTION",
+			"FUSION",
+			"GENERAL",
+			"GET",
+			"GLOBAL",
+			"GO",
+			"GOTO",
+			"GRANT",
+			"GROUP",
+			"GROUPING",
+			"HAVING",
+			"HOLD",
+			"HOST",
+			"HOUR",
+			"IDENTITY",
+			"IGNORE",
+			"ILIKE",
+			"IMMEDIATE",
+			"IN",
+			"INDICATOR",
+			"INITIALIZE",
+			"INITIALLY",
+			"INNER",
+			"INOUT",
+			"INPUT",
+			"INSENSITIVE",
+			"INSERT",
+			"INT",
+			"INTEGER",
+			"INTERSECT",
+			"INTERSECTION",
+			"INTERVAL",
+			"INTO",
+			"IS",
+			"ISNULL",
+			"ISOLATION",
+			"ITERATE",
+			"JOIN",
+			"KEY",
+			"LARGE",
+			"LAST",
+			"LATERAL",
+			"LEADING",
+			"LEFT",
+			"LESS",
+			"LEVEL",
+			"LIKE",
+			"LIMIT",
+			"LN",
+			"LOCAL",
+			"LOCALTIME",
+			"LOCALTIMESTAMP",
+			"LOCATOR",
+			"LOWER",
+			"MAP",
+			"MATCH",
+			"MAX",
+			"MEMBER",
+			"MERGE",
+			"METHOD",
+			"MIN",
+			"MINUTE",
+			"MOD",
+			"MODIFIES",
+			"MODIFY",
+			"MODULE",
+			"MONTH",
+			"MULTISET",
+			"NAMES",
+			"NATIONAL",
+			"NATURAL",
+			"NCHAR",
+			"NCLOB",
+			"NEW",
+			"NEXT",
+			"NO",
+			"NONE",
+			"NORMALIZE",
+			"NOT",
+			"NOTNULL",
+			"NULL",
+			"NULLIF",
+			"NUMERIC",
+			"OBJECT",
+			"OCTET_LENGTH",
+			"OF",
+			"OFF",
+			"OFFSET",
+			"OLD",
+			"ON",
+			"ONLY",
+			"OPEN",
+			"OPERATION",
+			"OPTION",
+			"OR",
+			"ORDER",
+			"ORDINALITY",
+			"OUT",
+			"OUTER",
+			"OUTPUT",
+			"OVER",
+			"OVERLAPS",
+			"OVERLAY",
+			"PAD",
+			"PARAMETER",
+			"PARAMETERS",
+			"PARTIAL",
+			"PARTITION",
+			"PATH",
+			"PERCENTILE_CONT",
+			"PERCENTILE_DISC",
+			"PERCENT_RANK",
+			"PLACING",
+			"POSITION",
+			"POSTFIX",
+			"POWER",
+			"PRECISION",
+			"PREFIX",
+			"PREORDER",
+			"PREPARE",
+			"PRESERVE",
+			"PRIMARY",
+			"PRIOR",
+			"PRIVILEGES",
+			"PROCEDURE",
+			"PUBLIC",
+			"RANGE",
+			"RANK",
+			"READ",
+			"READS",
+			"REAL",
+			"RECURSIVE",
+			"REF",
+			"REFERENCES",
+			"REFERENCING",
+			"REGR_AVGX",
+			"REGR_AVGY",
+			"REGR_COUNT",
+			"REGR_INTERCEPT",
+			"REGR_R2",
+			"REGR_SLOPE",
+			"REGR_SXX",
+			"REGR_SXY",
+			"REGR_SYY",
+			"RELATIVE",
+			"RELEASE",
+			"RESTRICT",
+			"RESULT",
+			"RETURN",
+			"RETURNING",
+			"RETURNS",
+			"REVOKE",
+			"RIGHT",
+			"ROLLBACK",
+			"ROLLUP",
+			"ROUTINE",
+			"ROW",
+			"ROWS",
+			"ROW_NUMBER",
+			"SAVEPOINT",
+			"SCHEMA",
+			"SCOPE",
+			"SCROLL",
+			"SEARCH",
+			"SECOND",
+			"SECTION",
+			"SELECT",
+			"SENSITIVE",
+			"SEQUENCE",
+			"SESSION",
+			"SESSION_USER",
+			"SET",
+			"SETS",
+			"SIMILAR",
+			"SIZE",
+			"SMALLINT",
+			"SOME",
+			"SPACE",
+			"SPECIFIC",
+			"SPECIFICTYPE",
+			"SQL",
+			"SQLCODE",
+			"SQLERROR",
+			"SQLEXCEPTION",
+			"SQLSTATE",
+			"SQLWARNING",
+			"SQRT",
+			"START",
+			"STATE",
+			"STATEMENT",
+			"STATIC",
+			"STDDEV_POP",
+			"STDDEV_SAMP",
+			"STRUCTURE",
+			"SUBMULTISET",
+			"SUBSTRING",
+			"SUM",
+			"SYMMETRIC",
+			"SYSTEM",
+			"SYSTEM_USER",
+			"TABLE",
+			"TABLESAMPLE",
+			"TEMPORARY",
+			"TERMINATE",
+			"THAN",
+			"THEN",
+			"TIME",
+			"TIMESTAMP",
+			"TIMEZONE_HOUR",
+			"TIMEZONE_MINUTE",
+			"TO",
+			"TRAILING",
+			"TRANSACTION",
+			"TRANSLATE",
+			"TRANSLATION",
+			"TREAT",
+			"TRIGGER",
+			"TRIM",
+			"TRUE",
+			"UESCAPE",
+			"UNDER",
+			"UNION",
+			"UNIQUE",
+			"UNKNOWN",
+			"UNNEST",
+			"UPDATE",
+			"UPPER",
+			"USAGE",
+			"USER",
+			"USING",
+			"VALUE",
+			"VALUES",
+			"VARCHAR",
+			"VARIABLE",
+			"VARYING",
+			"VAR_POP",
+			"VAR_SAMP",
+			"VERBOSE",
+			"VIEW",
+			"WHEN",
+			"WHENEVER",
+			"WHERE",
+			"WIDTH_BUCKET",
+			"WINDOW",
+			"WITH",
+			"WITHIN",
+			"WITHOUT",
+			"WORK",
+			"WRITE",
+			"XML",
+			"XMLAGG",
+			"XMLATTRIBUTES",
+			"XMLBINARY",
+			"XMLCOMMENT",
+			"XMLCONCAT",
+			"XMLELEMENT",
+			"XMLFOREST",
+			"XMLNAMESPACES",
+			"XMLPARSE",
+			"XMLPI",
+			"XMLROOT",
+			"XMLSERIALIZE",
+			"YEAR",
+			"ZONE",
+	}));		
 
-}
+}

src/main/engine/net/sf/jailer/util/ToDo.java

@@ -1,5 +0,0 @@
-package net.sf.jailer.util;
-
-public class ToDo {
-	
-}

src/main/gui/net/sf/jailer/ui/AdditionalSubjectsDialog.java

@@ -16,7 +16,6 @@
 package net.sf.jailer.ui;
 
 import java.awt.Color;
-import java.awt.Cursor;
 import java.awt.Dimension;
 import java.awt.GridBagConstraints;
 import java.awt.Image;
@@ -430,7 +429,7 @@ public class AdditionalSubjectsDialog extends javax.swing.JDialog {
 
 	private void addAllButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_addAllButtonActionPerformed
 		try {
-			setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
+			UIUtil.setWaitCursor(this);
 			
 			List<Table> tables = new ArrayList<Table>(remaining);
 			Collections.sort(tables);
@@ -443,7 +442,7 @@ public class AdditionalSubjectsDialog extends javax.swing.JDialog {
 			additionalSubjectListEditor.setModel(subjects);
 			collectRemaining();
 		} finally {
-			setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
+			UIUtil.resetWaitCursor(this);
 		}
 	}//GEN-LAST:event_addAllButtonActionPerformed
 

src/main/gui/net/sf/jailer/ui/ClosureView.form

@@ -27,7 +27,7 @@
     <AuxValue name="FormSettings_listenerGenerationStyle" type="java.lang.Integer" value="0"/>
     <AuxValue name="FormSettings_variablesLocal" type="java.lang.Boolean" value="false"/>
     <AuxValue name="FormSettings_variablesModifier" type="java.lang.Integer" value="2"/>
-    <AuxValue name="designerSize" type="java.awt.Dimension" value="-84,-19,0,5,115,114,0,18,106,97,118,97,46,97,119,116,46,68,105,109,101,110,115,105,111,110,65,-114,-39,-41,-84,95,68,20,2,0,2,73,0,6,104,101,105,103,104,116,73,0,5,119,105,100,116,104,120,112,0,0,0,-64,0,0,3,124"/>
+    <AuxValue name="designerSize" type="java.awt.Dimension" value="-84,-19,0,5,115,114,0,18,106,97,118,97,46,97,119,116,46,68,105,109,101,110,115,105,111,110,65,-114,-39,-41,-84,95,68,20,2,0,2,73,0,6,104,101,105,103,104,116,73,0,5,119,105,100,116,104,120,112,0,0,0,-64,0,0,2,121"/>
   </AuxValues>
 
   <Layout class="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout"/>
@@ -133,7 +133,7 @@
                   </Properties>
                   <Constraints>
                     <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
-                      <GridBagConstraints gridX="3" gridY="2" gridWidth="1" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="13" weightX="1.0" weightY="0.0"/>
+                      <GridBagConstraints gridX="7" gridY="2" gridWidth="1" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="13" weightX="1.0" weightY="0.0"/>
                     </Constraint>
                   </Constraints>
                 </Component>
@@ -153,7 +153,7 @@
                   </Events>
                   <Constraints>
                     <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
-                      <GridBagConstraints gridX="4" gridY="2" gridWidth="1" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="10" weightX="0.0" weightY="0.0"/>
+                      <GridBagConstraints gridX="-1" gridY="2" gridWidth="1" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="10" weightX="0.0" weightY="0.0"/>
                     </Constraint>
                   </Constraints>
                 </Component>
@@ -164,6 +164,39 @@
                   <Events>
                     <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="findButtonActionPerformed"/>
                   </Events>
+                  <Constraints>
+                    <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+                      <GridBagConstraints gridX="5" gridY="2" gridWidth="1" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="4" insetsBottom="0" insetsRight="0" anchor="17" weightX="0.0" weightY="0.0"/>
+                    </Constraint>
+                  </Constraints>
+                </Component>
+                <Component class="javax.swing.JComboBox" name="findPathComboBox">
+                  <Properties>
+                    <Property name="model" type="javax.swing.ComboBoxModel" editor="org.netbeans.modules.form.editors2.ComboBoxModelEditor">
+                      <StringArray count="4">
+                        <StringItem index="0" value="Item 1"/>
+                        <StringItem index="1" value="Item 2"/>
+                        <StringItem index="2" value="Item 3"/>
+                        <StringItem index="3" value="Item 4"/>
+                      </StringArray>
+                    </Property>
+                  </Properties>
+                  <Events>
+                    <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="findPathComboBoxActionPerformed"/>
+                  </Events>
+                  <Constraints>
+                    <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+                      <GridBagConstraints gridX="4" gridY="2" gridWidth="1" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="10" weightX="0.0" weightY="0.0"/>
+                    </Constraint>
+                  </Constraints>
+                </Component>
+                <Component class="javax.swing.JButton" name="findPathButton">
+                  <Properties>
+                    <Property name="text" type="java.lang.String" value="Search"/>
+                  </Properties>
+                  <Events>
+                    <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="findPathButtonActionPerformed"/>
+                  </Events>
                   <Constraints>
                     <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
                       <GridBagConstraints gridX="3" gridY="2" gridWidth="1" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="4" insetsBottom="0" insetsRight="0" anchor="17" weightX="0.0" weightY="0.0"/>

src/main/gui/net/sf/jailer/ui/ClosureView.java

@@ -21,11 +21,13 @@ import java.awt.Component;
 import java.awt.Container;
 import java.awt.Dimension;
 import java.awt.Font;
+import java.awt.Frame;
 import java.awt.Graphics;
 import java.awt.Graphics2D;
 import java.awt.GridBagConstraints;
 import java.awt.Rectangle;
 import java.awt.RenderingHints;
+import java.awt.Window;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
 import java.awt.event.ItemEvent;
@@ -45,6 +47,7 @@ import java.util.List;
 import java.util.Map;
 import java.util.Set;
 import java.util.SortedMap;
+import java.util.Stack;
 import java.util.TreeMap;
 import java.util.TreeSet;
 import java.util.Vector;
@@ -67,6 +70,10 @@ import javax.swing.table.TableColumn;
 import net.sf.jailer.datamodel.Association;
 import net.sf.jailer.datamodel.DataModel;
 import net.sf.jailer.datamodel.Table;
+import net.sf.jailer.ui.StringSearchPanel.AdditionalComponentFactory;
+import net.sf.jailer.ui.pathfinder.HistoryPanel;
+import net.sf.jailer.ui.pathfinder.PathFinder;
+import net.sf.jailer.ui.pathfinder.PathFinder.Result;
 import net.sf.jailer.ui.scrollmenu.JScrollMenu;
 import net.sf.jailer.ui.scrollmenu.JScrollPopupMenu;
 import net.sf.jailer.util.Pair;
@@ -167,6 +174,71 @@ public abstract class ClosureView extends javax.swing.JDialog {
         findButton.setVisible(false);
         searchButton.setText("Find Table");
 		
+		AutoCompletion.enable(findPathComboBox);
+		findPathComboBox.getEditor().getEditorComponent().addKeyListener(new KeyListener() {
+			@Override
+			public void keyTyped(KeyEvent e) {
+				if (e.getKeyChar() == '\n') {
+					findButtonActionPerformed(null);
+				}
+			}
+			@Override
+			public void keyReleased(KeyEvent e) {
+			}
+			@Override
+			public void keyPressed(KeyEvent arg0) {
+			}
+		});
+		gridBagConstraints = new java.awt.GridBagConstraints();
+        gridBagConstraints.gridx = 3;
+        gridBagConstraints.gridy = 2;
+        Object currentSelection = rootTable.getSelectedItem();
+        Table source = null;
+		if (currentSelection instanceof String) {
+			source = getDataModel().getTableByDisplayName((String) currentSelection);
+		}
+        final javax.swing.JComboBox comboBox = findPathComboBox;
+        JButton stFindButtonButton = StringSearchPanel.createSearchButton(extractionModelEditor.extractionModelFrame, comboBox, 
+    		new Object() {
+				public String toString() {
+					Table source = null;
+					Object currentSelection = ClosureView.this.rootTable.getSelectedItem();
+					if (currentSelection instanceof String) {
+						source = getDataModel().getTableByDisplayName((String) currentSelection);
+					}
+					return (source != null? ("From " + getDataModel().getDisplayName(source) + " - ") : "") + "Select destination or choose from History";
+				}
+			},
+			new Runnable() {
+				@Override
+				public void run() {
+					findPathButtonActionPerformed(null);
+				}
+			}, null, null, null, true,
+			new AdditionalComponentFactory() {
+				@Override
+				public JComponent create(final StringSearchPanel searchPanel) {
+					HistoryPanel historyPanel = new HistoryPanel(ClosureView.this.getSelectedTable(), getDataModel()) {
+						private static final long serialVersionUID = 1L;
+	
+						@Override
+						protected void close() {
+							searchPanel.close();
+						}
+						@Override
+						protected void apply(Table source, Table destination) {
+							findPath(source, destination, true);
+						}
+					};
+			        return historyPanel;
+				}
+			});
+		tablePanel.add(stFindButtonButton, gridBagConstraints);
+        
+        findPathComboBox.setVisible(false);
+        findPathButton.setVisible(false);
+        stFindButtonButton.setText("Find Path to...");
+		
 		columnsComboBox.setModel(new DefaultComboBoxModel<Integer>(new Integer[] { 
 				4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20
 		}));
@@ -245,6 +317,7 @@ public abstract class ClosureView extends javax.swing.JDialog {
 		};
 		closureTable.setShowGrid(false);
 		closureTable.setSurrendersFocusOnKeystroke(true);
+        closureTable.getTableHeader().setReorderingAllowed(false);
 		jScrollPane1.setViewportView(closureTable);
 
 		closureTable.addMouseListener(new MouseListener() {
@@ -262,7 +335,7 @@ public abstract class ClosureView extends javax.swing.JDialog {
 					if (value == null || !(value instanceof String)) return;
 					Table table = getDataModel().getTableByDisplayName((String) value);
 					if (table != null) {
-						JPopupMenu popup = ClosureView.this.extractionModelEditor.graphView.createPopupMenu(table, true);
+						JPopupMenu popup = ClosureView.this.extractionModelEditor.graphView.createPopupMenu(table, createFindPathMenuItem(table), true);
 						popup.show(e.getComponent(), e.getX(), e.getY());
 					}
 				}
@@ -362,7 +435,7 @@ public abstract class ClosureView extends javax.swing.JDialog {
 							selectTableCell(column, row);
 						}
 						
-						ClosureView.this.extractionModelEditor.graphView.createPopupMenu(table, false);
+						ClosureView.this.extractionModelEditor.graphView.createPopupMenu(table, null, false);
 						popup.show(e.getComponent(), cellRect.x, cellRect.y + cellRect.height + 4);
 					}
 				}
@@ -385,6 +458,7 @@ public abstract class ClosureView extends javax.swing.JDialog {
 			private Font font = new JLabel("normal").getFont();
 			private Font normal = new Font(font.getName(), font.getStyle() & ~Font.BOLD, font.getSize());
 			private Font bold = new Font(font.getName(), font.getStyle() | Font.BOLD, font.getSize());
+			// private Font italic = new Font(font.getName(), font.getStyle() | Font.ITALIC, font.getSize());
 			
 			@Override
 			public Component getTableCellRendererComponent(JTable table,
@@ -436,6 +510,10 @@ public abstract class ClosureView extends javax.swing.JDialog {
 						} else if (!allDisabled && someRestricted) {
 							((JLabel) render).setForeground(new Color(0, 80, 160));
 						}
+						if (currentForcedDistance != null && currentForcedDistance.containsKey(t)) {
+							((JLabel) render).setFont(bold);
+//							((JLabel) render).setForeground(new Color(150, 150, 150));
+						}
 					}
 				}
 				return render;
@@ -541,8 +619,8 @@ public abstract class ClosureView extends javax.swing.JDialog {
 				Table table = getDataModel().getTableByDisplayName(selectedTable);
 				if (table != null) {
 					CellInfo selectionInfo = cellInfo.get(selectedTable);
-					selectionInfo.select();
 					if (selectionInfo != null) {
+						selectionInfo.select();
 						Association association = null;
 						for (CellInfo parent: selectionInfo.parents) {
 							Table pre = parent.table;
@@ -557,6 +635,58 @@ public abstract class ClosureView extends javax.swing.JDialog {
 								}
 							}
 						}
+						Stack<Table> toSelect = new Stack<Table>();
+						CellInfo ci = selectionInfo;
+						final int MAX_PATH_LENGTH = 1000;
+						while (ci != null) {
+							if (toSelect.size() > MAX_PATH_LENGTH) {
+								break;
+							}
+							if (ci.table != null) {
+								toSelect.push(ci.table);
+							}
+							CellInfo nextCi = null;
+							for (CellInfo parent: ci.parents) {
+								Table pre = parent.table;
+								if (pre != null) {
+									CellInfo preInfo = cellInfo.get(getDataModel().getDisplayName(pre));
+									if (preInfo != null) {
+										if (preInfo.selected) {
+											if (preInfo.table != null) {
+												nextCi = preInfo;
+												break;
+											}
+										}
+									}
+								}
+							}
+							ci = nextCi;
+						}
+						Table selTable = getSelectedTable();
+						if (currentForcedDistance != null) {
+							if (selTable != null && !toSelect.contains(selTable)
+								||
+								!currentForcedDistance.containsKey(table)) {
+								refresh();
+								selectTableCell(col, row);
+								return;
+							}
+						}
+						extractionModelEditor.incCaptureLevel();
+						try {
+							if (!toSelect.isEmpty()) {
+								Table source = toSelect.pop();
+								while (!toSelect.isEmpty()) {
+									Table dest = toSelect.pop();
+									if (!ClosureView.this.extractionModelEditor.graphView.isTableVisible(dest)) {
+										ClosureView.this.extractionModelEditor.graphView.showTable(source, dest);
+									}
+									source = dest;
+								}
+							}
+						} finally {
+							extractionModelEditor.decCaptureLevel();
+						}
 						if (association != null && ClosureView.this.extractionModelEditor.select(association)) {
 							return;
 						}
@@ -617,7 +747,7 @@ public abstract class ClosureView extends javax.swing.JDialog {
 //    	}
 		
 		// table model
-		refreshTableModel();
+		refreshTableModel(null);
 
 		refreshing = false;
 	}
@@ -627,7 +757,7 @@ public abstract class ClosureView extends javax.swing.JDialog {
 	 */
 	public void refresh() {
 		String prevSelection = selectedTable;
-		refreshTableModel();
+		refreshTableModel(null);
 		if (cellInfo.containsKey(prevSelection)) {
 			selectedTable = prevSelection;
 		} else {
@@ -637,15 +767,23 @@ public abstract class ClosureView extends javax.swing.JDialog {
 		repaintClosureView();
 	}
 	
+	private Map<Table, Integer> currentForcedDistance = null;
+	
 	/**
 	 * Refreshes the table model.
+	 * @param excludedTables 
+	 * @param path 
 	 */
-	private void refreshTableModel() {
+	private void refreshTableModel(Map<Table, Integer> forcedDistance) {
 		cellInfo.clear();
 		dependencies.clear();
+		currentForcedDistance = forcedDistance;
+		if (forcedDistance == null) {
+			forcedDistance = new HashMap<Table, Integer>();
+		}
 		Table selectedTable = getSelectedTable();
 		refreshAssociationView(selectedTable);
-		
+
 		Object[] columns = new Object[tablesPerLine + 1];
 		for (int i = 0; i < columns.length; ++i) {
 			columns[i] = "";
@@ -673,7 +811,7 @@ public abstract class ClosureView extends javax.swing.JDialog {
 		boolean isolated = false;
 		
 		final Color BG1 = new Color(255, 255, 255);
-		final Color BG2 = new Color(230, 255, 255);
+		final Color BG2 = new Color(242, 255, 242);
 		final Color BG3 = new Color(255, 255, 240);
 		final Color BG4 = new Color(220, 220, 220);
 		final Color BG5 = new Color(255, 240, 240);
@@ -682,6 +820,7 @@ public abstract class ClosureView extends javax.swing.JDialog {
 		TreeSet<String> nonIsolated = new TreeSet<String>();
 		
 		while (!currentLine.isEmpty()) {
+
 			// add current line to table model
 			if (distance == OMEGA || isolated) {
 				Object[] lineAsObjects = new Object[tablesPerLine + 1];
@@ -725,18 +864,32 @@ public abstract class ClosureView extends javax.swing.JDialog {
 			
 			// get next line
 			List<String> nextLine = new ArrayList<String>();
+
 			for (String t: currentLine) {
 				Table table = getDataModel().getTableByDisplayName(t);
 				if (table != null) {
 					CellInfo cellInfoT = this.cellInfo.get(t);
 					for (Association association: table.associations) {
+						Integer fd = forcedDistance.get(association.destination);
+						if (fd != null && fd != distance + 1) {
+							continue;
+						}
+						boolean addToParent = true;
+                        if (forcedDistance.containsKey(association.destination)) {
+                        	if (!forcedDistance.containsKey(table)) {
+                        		addToParent = false;
+                        	}
+                        }
 						String displayName = getDataModel().getDisplayName(association.destination);
-						if (!association.isIgnored()) {
+                        if (!association.isIgnored() || 
+                        		(forcedDistance.containsKey(association.source) && forcedDistance.containsKey(association.destination))) {
 							if (!visited.contains(displayName)) {
 								nextLine.add(displayName);
 								visited.add(displayName);
 								CellInfo cellInfo = new CellInfo(distance);
-								cellInfo.parents.add(cellInfoT);
+								if (addToParent) {
+									cellInfo.parents.add(cellInfoT);
+								}
 								cellInfo.table = association.destination;
 								if (association.isInsertDestinationBeforeSource()) {
 									dependencies.add(new Pair<String, String>(t, displayName));
@@ -744,7 +897,9 @@ public abstract class ClosureView extends javax.swing.JDialog {
 								this.cellInfo.put(displayName, cellInfo);
 							} else {
 								if (nextLine.contains(displayName)) {
-									this.cellInfo.get(displayName).parents.add(cellInfoT);
+									if (addToParent) {
+										this.cellInfo.get(displayName).parents.add(cellInfoT);
+									}
 									if (association.isInsertDestinationBeforeSource()) {
 										dependencies.add(new Pair<String, String>(t, displayName));
 									}
@@ -852,6 +1007,8 @@ public abstract class ClosureView extends javax.swing.JDialog {
 		vector.addAll(nonIsolated);
 		searchComboBox.setModel(new DefaultComboBoxModel<String>(vector));
 		searchComboBox.setSelectedItem("");
+		findPathComboBox.setModel(new DefaultComboBoxModel<String>(vector));
+		findPathComboBox.setSelectedItem("");
 	}
 
 	private Table getSelectedTable() {
@@ -1102,9 +1259,9 @@ public abstract class ClosureView extends javax.swing.JDialog {
 				public void mouseClicked(MouseEvent e) {
 					if (SwingUtilities.isRightMouseButton(e)) {
 						if (tableName != null) {
-							Table table = getDataModel().getTable(tableName);
+							final Table table = getDataModel().getTable(tableName);
 							if (table != null) {
-								JPopupMenu popup = ClosureView.this.extractionModelEditor.graphView.createPopupMenu(table, false);
+								JPopupMenu popup = ClosureView.this.extractionModelEditor.graphView.createPopupMenu(table, createFindPathMenuItem(table), false);
 								popup.show(e.getComponent(), e.getX(), e.getY());
 							}
 						}
@@ -1125,7 +1282,7 @@ public abstract class ClosureView extends javax.swing.JDialog {
 		}
 		return label;
 	}
-	
+
 	/**
 	 * Collects names of associations in the closure ordered by distance into {@link #associationClosure}.
 	 *  
@@ -1209,10 +1366,12 @@ public abstract class ClosureView extends javax.swing.JDialog {
         tablePanel = new javax.swing.JPanel();
         jScrollPane1 = new javax.swing.JScrollPane();
         closureTable = new javax.swing.JTable();
-        searchComboBox = new net.sf.jailer.ui.JComboBox();
+        searchComboBox = new JComboBox();
         jLabel7 = new javax.swing.JLabel();
-        columnsComboBox = new net.sf.jailer.ui.JComboBox();
+        columnsComboBox = new JComboBox();
         findButton = new javax.swing.JButton();
+        findPathComboBox = new JComboBox();
+        findPathButton = new javax.swing.JButton();
         associationPane = new javax.swing.JPanel();
         associationPanel = new javax.swing.JPanel();
         jScrollPane2 = new javax.swing.JScrollPane();
@@ -1236,8 +1395,7 @@ public abstract class ClosureView extends javax.swing.JDialog {
 
         tabbedPane.setMinimumSize(new java.awt.Dimension(182, 190));
         tabbedPane.addChangeListener(new javax.swing.event.ChangeListener() {
-            @Override
-			public void stateChanged(javax.swing.event.ChangeEvent evt) {
+            public void stateChanged(javax.swing.event.ChangeEvent evt) {
                 tabbedPaneStateChanged(evt);
             }
         });
@@ -1277,8 +1435,7 @@ public abstract class ClosureView extends javax.swing.JDialog {
 
         searchComboBox.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "Item 1", "Item 2", "Item 3", "Item 4" }));
         searchComboBox.addActionListener(new java.awt.event.ActionListener() {
-            @Override
-			public void actionPerformed(java.awt.event.ActionEvent evt) {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
                 searchComboBoxActionPerformed(evt);
             }
         });
@@ -1289,7 +1446,7 @@ public abstract class ClosureView extends javax.swing.JDialog {
 
         jLabel7.setText("Columns ");
         gridBagConstraints = new java.awt.GridBagConstraints();
-        gridBagConstraints.gridx = 3;
+        gridBagConstraints.gridx = 7;
         gridBagConstraints.gridy = 2;
         gridBagConstraints.anchor = java.awt.GridBagConstraints.EAST;
         gridBagConstraints.weightx = 1.0;
@@ -1297,29 +1454,50 @@ public abstract class ClosureView extends javax.swing.JDialog {
 
         columnsComboBox.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "Item 1", "Item 2", "Item 3", "Item 4" }));
         columnsComboBox.addItemListener(new java.awt.event.ItemListener() {
-            @Override
-			public void itemStateChanged(java.awt.event.ItemEvent evt) {
+            public void itemStateChanged(java.awt.event.ItemEvent evt) {
                 columnsComboBoxItemStateChanged(evt);
             }
         });
         gridBagConstraints = new java.awt.GridBagConstraints();
-        gridBagConstraints.gridx = 4;
         gridBagConstraints.gridy = 2;
         tablePanel.add(columnsComboBox, gridBagConstraints);
 
         findButton.setText("Search");
         findButton.addActionListener(new java.awt.event.ActionListener() {
-            @Override
-			public void actionPerformed(java.awt.event.ActionEvent evt) {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
                 findButtonActionPerformed(evt);
             }
         });
         gridBagConstraints = new java.awt.GridBagConstraints();
+        gridBagConstraints.gridx = 5;
+        gridBagConstraints.gridy = 2;
+        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
+        gridBagConstraints.insets = new java.awt.Insets(0, 4, 0, 0);
+        tablePanel.add(findButton, gridBagConstraints);
+
+        findPathComboBox.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "Item 1", "Item 2", "Item 3", "Item 4" }));
+        findPathComboBox.addActionListener(new java.awt.event.ActionListener() {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
+                findPathComboBoxActionPerformed(evt);
+            }
+        });
+        gridBagConstraints = new java.awt.GridBagConstraints();
+        gridBagConstraints.gridx = 4;
+        gridBagConstraints.gridy = 2;
+        tablePanel.add(findPathComboBox, gridBagConstraints);
+
+        findPathButton.setText("Search");
+        findPathButton.addActionListener(new java.awt.event.ActionListener() {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
+                findPathButtonActionPerformed(evt);
+            }
+        });
+        gridBagConstraints = new java.awt.GridBagConstraints();
         gridBagConstraints.gridx = 3;
         gridBagConstraints.gridy = 2;
         gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
         gridBagConstraints.insets = new java.awt.Insets(0, 4, 0, 0);
-        tablePanel.add(findButton, gridBagConstraints);
+        tablePanel.add(findPathButton, gridBagConstraints);
 
         tablePane.add(tablePanel);
 
@@ -1388,8 +1566,7 @@ public abstract class ClosureView extends javax.swing.JDialog {
 
         showOnlyEnabledCheckBox.setText("Show only enabled associations");
         showOnlyEnabledCheckBox.addItemListener(new java.awt.event.ItemListener() {
-            @Override
-			public void itemStateChanged(java.awt.event.ItemEvent evt) {
+            public void itemStateChanged(java.awt.event.ItemEvent evt) {
                 showOnlyEnabledCheckBoxItemStateChanged(evt);
             }
         });
@@ -1466,6 +1643,72 @@ public abstract class ClosureView extends javax.swing.JDialog {
 		}
     }//GEN-LAST:event_findButtonActionPerformed
 
+    private void findPathComboBoxActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_findPathComboBoxActionPerformed
+    }//GEN-LAST:event_findPathComboBoxActionPerformed
+
+    private void findPathButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_findPathButtonActionPerformed
+    	Object toFind = findPathComboBox.getSelectedItem();
+		if (toFind != null) {
+			CellInfo cellInfo = this.cellInfo.get(toFind);
+			if (cellInfo != null) {
+				Object currentSelection = rootTable.getSelectedItem();
+				if (currentSelection instanceof String) {
+					final Table source = getDataModel().getTableByDisplayName((String) currentSelection);
+					// if (source.closure(true).contains(cellInfo.table)) {
+						findPath(source, cellInfo.table, false);
+					// }
+				}
+			}
+		}
+	}//GEN-LAST:event_findPathButtonActionPerformed
+
+    protected JMenuItem createFindPathMenuItem(final Table table) {
+		JMenuItem findPath = new JMenuItem("Find Path to " + getDataModel().getDisplayName(table));
+		Object currentSelection = rootTable.getSelectedItem();
+		if (currentSelection instanceof String) {
+			final Table source = getDataModel().getTableByDisplayName((String) currentSelection);
+			 if (source.closure(false).contains(table)) {
+				findPath.addActionListener(new ActionListener() {
+					@Override
+					public void actionPerformed(ActionEvent arg0) {
+						findPath(source, table, false);
+					}
+				});
+				return findPath;
+			 }
+		}
+		findPath.setEnabled(false);
+		return findPath;
+	}
+
+	private void findPath(Table source, Table destination, boolean fromHistory) {
+		Frame parent = null;
+		Window w = SwingUtilities.getWindowAncestor(rootTable);
+		if (w instanceof Frame) {
+			parent = (Frame) w;
+		}
+		Result result = new PathFinder().find(source, destination, getDataModel(), false, fromHistory, parent);
+		if (result != null) {
+			Map<Table, Integer> fd = new HashMap<Table, Integer>();
+			for (int i = 0; i < result.path.size(); ++i) {
+				fd.put(result.path.get(i), i);
+			}
+			refreshTableModel(fd);
+			List<Table> path = result.path;
+			Table table = null;
+			for (int i = 0; i < path.size(); i++) {
+				table = path.get(i);
+//				ClosureView.this.extractionModelEditor.select(table);
+			}
+			if (table != null) {
+				CellInfo ci = cellInfo.get(getDataModel().getDisplayName(table));
+				if (ci != null) {
+					selectTableCell(ci.column, ci.row);
+				}
+			}
+		}
+	}
+ 
 	private void initTabbedPane() {
 		if (tabbedPane.getSelectedIndex() == 2) {
 			tabAssTabPanel.removeAll();
@@ -1493,9 +1736,11 @@ public abstract class ClosureView extends javax.swing.JDialog {
     private javax.swing.JPanel associationPane;
     private javax.swing.JPanel associationPanel;
     private javax.swing.JTable closureTable;
-    private net.sf.jailer.ui.JComboBox columnsComboBox;
+    private JComboBox columnsComboBox;
     public javax.swing.JPanel contentPanel;
     private javax.swing.JButton findButton;
+    private javax.swing.JButton findPathButton;
+    private JComboBox findPathComboBox;
     private javax.swing.JLabel jLabel2;
     private javax.swing.JLabel jLabel3;
     private javax.swing.JLabel jLabel4;
@@ -1505,7 +1750,7 @@ public abstract class ClosureView extends javax.swing.JDialog {
     private javax.swing.JScrollPane jScrollPane1;
     private javax.swing.JScrollPane jScrollPane2;
     private javax.swing.JSeparator jSeparator1;
-    private net.sf.jailer.ui.JComboBox searchComboBox;
+    private JComboBox searchComboBox;
     private javax.swing.JCheckBox showOnlyEnabledCheckBox;
     private javax.swing.JPanel tabAssAssPanel;
     private javax.swing.JPanel tabAssPanel;
@@ -1523,4 +1768,9 @@ public abstract class ClosureView extends javax.swing.JDialog {
 	public void addTabComponent(String titel, Container tab) {
 		 tabbedPane.addTab(titel, tab);
 	}
+
+	public void selectTabComponent(Container tab) {
+		tabbedPane.setSelectedComponent(tab);
+	}
+
 }

src/main/gui/net/sf/jailer/ui/ColumnOrderEditor.java

@@ -17,7 +17,6 @@ package net.sf.jailer.ui;
 
 import java.awt.Color;
 import java.awt.Component;
-import java.awt.Cursor;
 import java.awt.Font;
 import java.io.FileNotFoundException;
 import java.util.ArrayList;
@@ -140,7 +139,7 @@ public class ColumnOrderEditor extends javax.swing.JPanel {
 		final TableCellRenderer defaultTableCellRenderer = columnOrderTable.getDefaultRenderer(String.class);
 		TableCellRenderer renderer = new TableCellRenderer() {
 			final Color BG1 = new Color(255, 255, 255);
-			final Color BG2 = new Color(230, 255, 255);
+			final Color BG2 = new Color(242, 255, 242);
 
 			@Override
 			public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
@@ -179,7 +178,7 @@ public class ColumnOrderEditor extends javax.swing.JPanel {
 		};
 		
 		try {
-			owner.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
+			UIUtil.setWaitCursor(owner);
 	        
 			Set<String> pks = new HashSet<String>();
 			Set<String> fks = new HashSet<String>();
@@ -236,7 +235,7 @@ public class ColumnOrderEditor extends javax.swing.JPanel {
 			columnOrderTable.getRowSorter().setSortKeys(keys);
 			adjustTableColumnsWidth();
 		} finally {
-			owner.setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
+			UIUtil.resetWaitCursor(owner);
 		}
         dialog = new EscapableDialog(owner, "Column Ordering") {
         };

src/main/gui/net/sf/jailer/ui/ConditionEditor.java

@@ -16,7 +16,10 @@
 package net.sf.jailer.ui;
 
 import java.awt.Color;
+import java.awt.Dimension;
 import java.awt.GridBagConstraints;
+import java.awt.Point;
+import java.awt.Toolkit;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
 import java.sql.SQLException;
@@ -34,6 +37,8 @@ import javax.swing.JScrollPane;
 import javax.swing.JSeparator;
 import javax.swing.SwingUtilities;
 
+import org.fife.rsta.ui.EscapableDialog;
+
 import net.sf.jailer.datamodel.Column;
 import net.sf.jailer.datamodel.DataModel;
 import net.sf.jailer.datamodel.Table;
@@ -50,12 +55,12 @@ import net.sf.jailer.util.SqlUtil;
  * 
  * @author Ralf Wisser
  */
-public class ConditionEditor extends javax.swing.JDialog {
-	
+public class ConditionEditor extends EscapableDialog {
+
 	private boolean ok;
 	private ParameterSelector parameterSelector;
 	private DataModelBasedSQLCompletionProvider provider;
-	
+
 	/** Creates new form ConditionEditor */
 	public ConditionEditor(java.awt.Frame parent, ParameterSelector.ParametersGetter parametersGetter, DataModel dataModel) {
 		super(parent, true);
@@ -525,6 +530,21 @@ public class ConditionEditor extends javax.swing.JDialog {
 		return sb.toString();
 	}
 
+	public void setLocationAndFit(Point pos) {
+		setLocation(pos);
+//		UIUtil.fit(this);
+        try {
+            // Get the size of the screen
+            Dimension dim = Toolkit.getDefaultToolkit().getScreenSize();
+            int hd = getY() - (dim.height - 80);
+            if (hd > 0) {
+                setLocation(getX(), Math.max(getY() - hd, 0));
+            }
+        } catch (Throwable t) {
+            // ignore
+        }
+	}
+
 	/**
 	 * Converts multi-line text into single line presentation.
 	 */
@@ -610,4 +630,5 @@ public class ConditionEditor extends javax.swing.JDialog {
 	public final RSyntaxTextAreaWithSQLSyntaxStyle editorPane;
 	
 	private static final long serialVersionUID = -5169934807182707970L;
+
 }

src/main/gui/net/sf/jailer/ui/CyclesView.java

@@ -149,7 +149,7 @@ public class CyclesView extends javax.swing.JDialog {
 					if (value == null || !(value instanceof String)) return;
 					Table table = getDataModel().getTableByDisplayName((String) value);
 					if (table != null) {
-						JPopupMenu popup = CyclesView.this.extractionModelFrame.extractionModelEditor.graphView.createPopupMenu(table, false);
+						JPopupMenu popup = CyclesView.this.extractionModelFrame.extractionModelEditor.graphView.createPopupMenu(table, null, false);
 						UIUtil.fit(popup);
 						popup.show(e.getComponent(), e.getX(), e.getY());
 					}
@@ -364,7 +364,7 @@ public class CyclesView extends javax.swing.JDialog {
 		
 		int distance = 0;
 		final Color BG1 = new Color(255, 255, 255);
-		final Color BG2 = new Color(230, 255, 255);
+		final Color BG2 = new Color(242, 255, 242);
 		bgColor.clear();
 		
 		for (CycleFinder.Path cycle: cycles) {

src/main/gui/net/sf/jailer/ui/DataModelEditor.java

@@ -17,6 +17,8 @@ package net.sf.jailer.ui;
 
 import java.awt.Color;
 import java.awt.Component;
+import java.awt.Dimension;
+import java.awt.Toolkit;
 import java.awt.event.WindowEvent;
 import java.awt.event.WindowListener;
 import java.io.File;
@@ -41,6 +43,7 @@ import javax.swing.JLabel;
 import javax.swing.JOptionPane;
 import javax.swing.JTable;
 import javax.swing.ListSelectionModel;
+import javax.swing.RowSorter.SortKey;
 import javax.swing.SortOrder;
 import javax.swing.event.DocumentEvent;
 import javax.swing.event.DocumentListener;
@@ -53,6 +56,8 @@ import javax.swing.table.TableColumn;
 import javax.swing.table.TableModel;
 import javax.swing.table.TableRowSorter;
 
+import net.coderazzi.filters.gui.AutoChoices;
+import net.coderazzi.filters.gui.TableFilterHeader;
 import net.sf.jailer.ExecutionContext;
 import net.sf.jailer.JailerVersion;
 import net.sf.jailer.datamodel.DataModel;
@@ -243,7 +248,17 @@ public class DataModelEditor extends javax.swing.JDialog {
 		
 		sortLineList(associations, false);
 		initComponents();
-		
+
+		TableFilterHeader filterHeader = new TableFilterHeader();
+		filterHeader.setAutoChoices(AutoChoices.ENABLED);
+		filterHeader.setTable(tablesTable);
+		filterHeader.setMaxVisibleRows(20);
+
+		filterHeader = new TableFilterHeader();
+		filterHeader.setAutoChoices(AutoChoices.ENABLED);
+		filterHeader.setTable(associationsTable);
+		filterHeader.setMaxVisibleRows(20);
+
 		String modelpath = executionContext.getQualifiedDatamodelFolder();
 		try {
 			modelpath = new File(modelpath).getAbsolutePath();
@@ -278,8 +293,13 @@ public class DataModelEditor extends javax.swing.JDialog {
 		UIUtil.wireComponentWithButton(tablesTable, editTable);
 		UIUtil.wireComponentWithButton(associationsTable, editAssociation);
 		
-		setSize(1000, 700);
 		setLocation(100, 32);
+		Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
+		if (screenSize == null || screenSize.width < 1200) {
+			setSize(1000, 700);
+		} else {
+			setSize(Math.min(screenSize.width - 2 * getX(), 2000), Math.min(screenSize.height - 2 * getY(), 800));
+		}
 
 		File modelFinderColumnFile = new File(ModelBuilder.getModelBuilderColumnsFilename(executionContext));
 		if (merge && modelFinderColumnFile.exists()) {
@@ -310,73 +330,47 @@ public class DataModelEditor extends javax.swing.JDialog {
 			@Override
 			public Component getTableCellRendererComponent(JTable table, Object value,
                     boolean isSelected, boolean hasFocus, int row, int column) {
-				boolean fromModelFinder = linesFromModelFinder.contains(value);
-				if (!(value instanceof CsvFile.Line)) {
-					return super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
+				if (value == null) {
+					value = "";
 				}
-				CsvFile.Line line = (CsvFile.Line) value;
-				String tableName = line.cells.get(0);
-				String pk = "";
-				for (int i = 2; i < line.length; ++i) {
-					if (line.cells.get(i).length() == 0) {
-						break;
-					}
-					if (pk.length() > 0) {
-						pk += ", ";
-					}
-					pk += line.cells.get(i);
-				}
-				value = column == 0? line.cells.get(0) : (pk.isEmpty()? "" : pk);
+				boolean fromModelFinder = tableTableRowsFromModelFinder.contains(tablesTable.getRowSorter().convertRowIndexToModel(row));
 				Component render = super.getTableCellRendererComponent(table, value, isSelected, false, row, column);
 				render.setForeground(Color.BLACK);
-				if (pk.equals("")) {
-					render.setForeground(Color.RED);
-				}
-				if (fromModelFinder || modifiedColumnTables.contains(tableName)) {
+				if (fromModelFinder || modifiedColumnTables.contains(value) && column == 0) {
 					render.setBackground(isSelected? BG_SELCOLOR : BG_COLOR);
 				} else {
 					render.setBackground(isSelected? BG_SELCOLOR : (row % 2 == 0) ? BG1 : BG2);
 				}
+				if (tableTableRowsWithoutPK.contains(tablesTable.getRowSorter().convertRowIndexToModel(row))) {
+					render.setForeground(Color.RED);
+				}
 				if (render instanceof JLabel) {
-					((JLabel) render).setToolTipText(UIUtil.toHTML(String.valueOf(value), 100));
+					if (!"".equals(value)) {
+						((JLabel) render).setToolTipText(UIUtil.toHTML(String.valueOf(value), 100));
+					} else {
+						((JLabel) render).setToolTipText(null);
+					}
 				}
 				return render;
 			}
 			private static final long serialVersionUID = -8591324056536900244L;
 		};
-		
+
 		DefaultTableCellRenderer associationsListItemRenderer = new DefaultTableCellRenderer() {
 			@Override
 			public Component getTableCellRendererComponent(JTable table, Object value,
                     boolean isSelected, boolean hasFocus, int row, int column) {
-				boolean fromModelFinder = linesFromModelFinder.contains(value);
-				if (!(value instanceof CsvFile.Line)) {
-					return super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
+				boolean fromModelFinder = associationTableRowsFromModelFinder.contains(associationsTable.getRowSorter().convertRowIndexToModel(row));
+				if (value == null) {
+					value = "";
 				}
-				CsvFile.Line line = (CsvFile.Line) value;
-				String type = "associates";
 				String typeTT = "associates";
-				if ("B".equalsIgnoreCase(line.cells.get(2))) {
-					type = "depends on";
+				if (value.equals("depends on")) {
 					typeTT = "depends on (has parent)";
 				}
-				if ("A".equalsIgnoreCase(line.cells.get(2))) {
-					type = "has dependent (has child)";
-					typeTT = "has dependent";
+				if (value.equals("has dependent")) {
+					typeTT = "has dependent (has child)";
 				}
-				String name = "";
-				if (line.cells.get(5).length() > 0) {
-					name = line.cells.get(5);
-				}
-				switch (column) {
-				case 0: value = line.cells.get(0); break;
-				case 1: value = line.cells.get(1); break;
-				case 2: value = line.cells.get(4); break;
-				case 3: value = type; break;
-				case 4: value = line.cells.get(3); break;
-				case 5: value = name; break;
-				}
-				// value = line.cells.get(0) + " " + type + " " + line.cells.get(1) + " " + name + line.cells.get(3) + " on " + line.cells.get(4);
 				Component render = super.getTableCellRendererComponent(table, value, isSelected, false, row, column);
 				if (fromModelFinder) {
 					render.setBackground(isSelected? BG_SELCOLOR: BG_COLOR);
@@ -399,7 +393,7 @@ public class DataModelEditor extends javax.swing.JDialog {
 		tablesTable.setAutoCreateRowSorter(true);
 		
 		tablesTable.setDefaultRenderer(Object.class, tablesListItemRenderer);
-		tablesTable.setModel(createTablesListModel());
+		resetTableTableModel();
 
 		// tablesTable.setRowSelectionAllowed(false);
 		tablesTable.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
@@ -409,17 +403,13 @@ public class DataModelEditor extends javax.swing.JDialog {
 				updateButtons();
 			}
 		});
-		initRowSorter(tablesTable, new int[] { 0, 2 });
+		initRowSorter(tablesTable);
 		adjustTableColumnsWidth(tablesTable);
 
 		associationsTable.setDefaultRenderer(Object.class, associationsListItemRenderer);
 		
 		associationsTable.setAutoCreateRowSorter(true);
-//		List<SortKey> keys = new ArrayList<SortKey>();
-//		keys.add(new SortKey(1, SortOrder.ASCENDING));
-//		keys.add(new SortKey(3, SortOrder.ASCENDING));
-//		associationsTable.getRowSorter().setSortKeys(keys);
-		associationsTable.setModel(createAssociationsListModel());
+		resetAssociationTableModel();
 		adjustTableColumnsWidth(associationsTable);
 
 		associationsTable.getSelectionModel().addListSelectionListener(new ListSelectionListener() {
@@ -428,7 +418,7 @@ public class DataModelEditor extends javax.swing.JDialog {
 				updateButtons();
 			}
 		});
-		initRowSorter(associationsTable, new int[] { 0, 1, 4, 2, 3, 5 });
+		initRowSorter(associationsTable);
 
 		invalidate();
 		if (initiallyDirty) {
@@ -463,6 +453,7 @@ public class DataModelEditor extends javax.swing.JDialog {
 						if (toEdit.getName().equals(l.cells.get(0))) {
 							if (new TableEditor(DataModelEditor.this, displayNames, tables, associations, excludeFromDeletion).edit(l, columns)) {
 								markDirty();
+								resetTableTableModel();
 								repaint();
 							}
 							break;
@@ -471,13 +462,13 @@ public class DataModelEditor extends javax.swing.JDialog {
 				}
 			}
 		});
-		
+
 		if (merge) {
 			ModelBuilder.cleanUp(executionContext);
 		}
 	}
 
-	private void initRowSorter(JTable table, final int[] mapping) {
+	private void initRowSorter(JTable table) {
 		TableRowSorter<TableModel> sorter = new TableRowSorter<TableModel>(table.getModel()) {
 			@Override
 			protected boolean useToString(int column) {
@@ -495,22 +486,6 @@ public class DataModelEditor extends javax.swing.JDialog {
 		        }
 		        super.toggleSortOrder(column);
 		    }
-
-			@Override
-			public Comparator<?> getComparator(final int n) {
-				return new Comparator<Object>() {
-					@SuppressWarnings("unchecked")
-					@Override
-					public int compare(Object o1, Object o2) {
-						if (o1 instanceof Line) {
-							if (o2 instanceof Line) {
-								return ((Line) o1).cells.get(mapping[n]).compareTo(((Line) o2).cells.get(mapping[n]));
-							}
-						}
-						return String.valueOf(o1).compareTo(String.valueOf(o2));
-					}
-				};
-			}
 		};
 		table.setRowSorter(sorter);
 	}
@@ -529,9 +504,9 @@ public class DataModelEditor extends javax.swing.JDialog {
 				comp = table.getCellRenderer(line, i).getTableCellRendererComponent(table, dtm.getValueAt(line, i), false, false, line, i);
 				width = Math.max(width, comp.getPreferredSize().width);
 			}
-			column.setPreferredWidth(Math.min(width, 200));
+			column.setPreferredWidth(Math.min(width, 400));
 		}
-		table.getColumnModel().getColumn(table.getColumnModel().getColumnCount() - 1).setPreferredWidth(80);
+		table.getColumnModel().getColumn(table.getColumnModel().getColumnCount() - 1).setPreferredWidth(120);
 	}
 
 	private KnownIdentifierMap createKnownIdentifierMap() throws IOException {
@@ -853,7 +828,7 @@ public class DataModelEditor extends javax.swing.JDialog {
 		CsvFile.Line line = new CsvFile.Line("?", cells);
 		if (new AssociationEditor(this, tables, associations, columns).edit(line)) {
 			associations.add(0, line);
-			associationsTable.setModel(createAssociationsListModel());
+			resetAssociationTableModel();
 			repaint();
 			markDirty();
 		}
@@ -866,12 +841,29 @@ public class DataModelEditor extends javax.swing.JDialog {
 		}
 		if (line != null) {
 			if (new AssociationEditor(this, tables, associations, columns).edit(line)) {
+				resetAssociationTableModel();
 				markDirty();
 				repaint();
 			}
 		}
 	}//GEN-LAST:event_editAssociationActionPerformed
 
+	private void resetAssociationTableModel() {
+		List<? extends SortKey> keys = associationsTable.getRowSorter().getSortKeys();
+		associationsTable.setModel(createAssociationsListModel());
+		initRowSorter(associationsTable);
+		adjustTableColumnsWidth(associationsTable);
+		associationsTable.getRowSorter().setSortKeys(keys);
+	}
+
+	private void resetTableTableModel() {
+		List<? extends SortKey> keys = tablesTable.getRowSorter().getSortKeys();
+		tablesTable.setModel(createTablesListModel());
+		initRowSorter(tablesTable);
+		adjustTableColumnsWidth(tablesTable);
+		tablesTable.getRowSorter().setSortKeys(keys);
+	}
+
 	private void newTableActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_newTableActionPerformed
 		List<String> cells = new ArrayList<String>();
 		cells.add("");
@@ -884,7 +876,7 @@ public class DataModelEditor extends javax.swing.JDialog {
 		CsvFile.Line line = new CsvFile.Line("?", cells);
 		if (new TableEditor(this, displayNames, tables, associations, excludeFromDeletion).edit(line, columns)) {
 			tables.add(0, line);
-			tablesTable.setModel(createTablesListModel());
+			resetTableTableModel();
 			markDirty();
 			repaint();
 		}
@@ -895,6 +887,7 @@ public class DataModelEditor extends javax.swing.JDialog {
 			CsvFile.Line line = tables.get(tablesTable.getRowSorter().convertRowIndexToModel(tablesTable.getSelectedRow()));
 			if (new TableEditor(this, displayNames, tables, associations, excludeFromDeletion).edit(line, columns)) {
 				markDirty();
+				resetTableTableModel();
 				repaint();
 			}
 		}
@@ -931,9 +924,9 @@ public class DataModelEditor extends javax.swing.JDialog {
 				displayNames.remove(k);
 			}
 			excludeFromDeletion.removeAll(namesOfTablesToDelete);
-			tablesTable.setModel(createTablesListModel());
+			resetTableTableModel();
 			associations.removeAll(assToDelete);
-			associationsTable.setModel(createAssociationsListModel());
+			resetAssociationTableModel();
 			for (Line l: toDelete) {
 				columns.remove(l.cells.get(0));
 			}
@@ -947,10 +940,14 @@ public class DataModelEditor extends javax.swing.JDialog {
 			toDelete.add(associations.get(associationsTable.getRowSorter().convertRowIndexToModel(i)));
 		}
 		associations.removeAll(toDelete);
-		associationsTable.setModel(createAssociationsListModel());
+		resetAssociationTableModel();
 		markDirty();
 	}//GEN-LAST:event_deleteAssociationsActionPerformed
 
+	private Set<Integer> tableTableRowsFromModelFinder = new HashSet<Integer>();
+	private Set<Integer> tableTableRowsWithoutPK = new HashSet<Integer>();
+	private Set<Integer> associationTableRowsFromModelFinder = new HashSet<Integer>();
+	
 	/**
 	 * Creates model for tables-list component.
 	 * 
@@ -963,8 +960,28 @@ public class DataModelEditor extends javax.swing.JDialog {
 				return false;
 			}
 		};
+		tableTableRowsFromModelFinder.clear();
+		tableTableRowsWithoutPK.clear();
+		int row = 0;
 		for (CsvFile.Line line: tables) {
-			tablesTableModel.addRow(new Object[] { line, line });
+			String pk = "";
+			for (int i = 2; i < line.length; ++i) {
+				if (line.cells.get(i).length() == 0) {
+					break;
+				}
+				if (pk.length() > 0) {
+					pk += ", ";
+				}
+				pk += line.cells.get(i);
+			}
+			if (linesFromModelFinder.contains(line)) {
+				tableTableRowsFromModelFinder.add(row);	
+			}
+			if (pk.isEmpty()) {
+				tableTableRowsWithoutPK.add(row);
+			}
+			tablesTableModel.addRow(new Object[] { line.cells.get(0), pk });
+			++row;
 		}
 		return tablesTableModel;
 	}
@@ -981,8 +998,25 @@ public class DataModelEditor extends javax.swing.JDialog {
 				return false;
 			}
 		};
+		associationTableRowsFromModelFinder.clear();
+		int row = 0;
 		for (CsvFile.Line line: associations) {
-			associationsTableModel.addRow(new Object[] { line, line, line, line, line, line });
+			String type = "associates";
+			if ("B".equalsIgnoreCase(line.cells.get(2))) {
+				type = "depends on";
+			}
+			if ("A".equalsIgnoreCase(line.cells.get(2))) {
+				type = "has dependent";
+			}
+			String name = "";
+			if (line.cells.get(5).length() > 0) {
+				name = line.cells.get(5);
+			}
+			if (linesFromModelFinder.contains(line)) {
+				associationTableRowsFromModelFinder.add(row);	
+			}
+			associationsTableModel.addRow(new Object[] { line.cells.get(0), line.cells.get(1), line.cells.get(4), type, line.cells.get(3), name });
+			++row;
 		}
 		return associationsTableModel;
 	}
@@ -1156,4 +1190,4 @@ public class DataModelEditor extends javax.swing.JDialog {
     // End of variables declaration//GEN-END:variables
 	
 	private static final long serialVersionUID = -1267039412732180237L;
-}
+}

src/main/gui/net/sf/jailer/ui/DataModelManagerDialog.java

@@ -61,6 +61,7 @@ import javax.swing.table.TableColumn;
 import net.sf.jailer.ExecutionContext;
 import net.sf.jailer.JailerVersion;
 import net.sf.jailer.datamodel.DataModel;
+import net.sf.jailer.modelbuilder.JDBCMetaDataBasedModelElementFinder;
 import net.sf.jailer.modelbuilder.ModelBuilder;
 import net.sf.jailer.util.CancellationHandler;
 import net.sf.jailer.util.Pair;
@@ -156,7 +157,7 @@ public abstract class DataModelManagerDialog extends javax.swing.JFrame {
 										false, hasFocus, row, column);
 						if (render instanceof JLabel) {
 							final Color BG1 = new Color(255, 255, 255);
-							final Color BG2 = new Color(230, 255, 255);
+							final Color BG2 = new Color(242, 255, 242);
 							if (!isSelected) {
 								((JLabel) render)
 									.setBackground((row % 2 == 0) ? BG1
@@ -788,6 +789,7 @@ public abstract class DataModelManagerDialog extends javax.swing.JFrame {
 		activateCurrentModel();
 		
 		try {
+			JDBCMetaDataBasedModelElementFinder.privilegedSessionProvider = new PrivilegedSessionProviderDialog.Provider(this);
 			DbConnectionDialog dbConnectionDialog = new DbConnectionDialog(this, applicationName,
 					new InfoBar("Connect with Database", 
 							"Select a connection to the database to be analyzed, or create a new connection.\n" +
@@ -837,6 +839,7 @@ public abstract class DataModelManagerDialog extends javax.swing.JFrame {
 			UIUtil.showException(this, "Error", e);
 		} finally {
 			ModelBuilder.assocFilter = null;
+			JDBCMetaDataBasedModelElementFinder.privilegedSessionProvider = null;
 		}
 
 	}//GEN-LAST:event_analyzeButtonActionPerformed
@@ -844,6 +847,7 @@ public abstract class DataModelManagerDialog extends javax.swing.JFrame {
     private void browseButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_browseButtonActionPerformed
        	String folder = choseFolder();
        	if (folder != null) {
+       		new File(folder).mkdir();
        		executionContext.setDatamodelFolder(folder);
        		baseFolders.remove(folder);
        		baseFolders.add(0, folder);

src/main/gui/net/sf/jailer/ui/DbConnectionDetailsEditor.form

@@ -170,7 +170,7 @@
         <Container class="javax.swing.JPanel" name="jPanel2">
           <Constraints>
             <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
-              <GridBagConstraints gridX="0" gridY="100" gridWidth="4" gridHeight="1" fill="1" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="10" weightX="1.0" weightY="1.0"/>
+              <GridBagConstraints gridX="0" gridY="100" gridWidth="4" gridHeight="1" fill="1" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="4" insetsRight="0" anchor="10" weightX="1.0" weightY="1.0"/>
             </Constraint>
           </Constraints>
 
@@ -178,14 +178,14 @@
           <SubComponents>
             <Component class="javax.swing.JButton" name="okButton">
               <Properties>
-                <Property name="text" type="java.lang.String" value=" Ok "/>
+                <Property name="text" type="java.lang.String" value="  Ok  "/>
               </Properties>
               <Events>
                 <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="okButtonActionPerformed"/>
               </Events>
               <Constraints>
                 <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
-                  <GridBagConstraints gridX="1" gridY="0" gridWidth="1" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="4" insetsLeft="4" insetsBottom="0" insetsRight="4" anchor="14" weightX="0.0" weightY="0.0"/>
+                  <GridBagConstraints gridX="2" gridY="0" gridWidth="1" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="4" insetsLeft="4" insetsBottom="0" insetsRight="4" anchor="14" weightX="0.0" weightY="0.0"/>
                 </Constraint>
               </Constraints>
             </Component>
@@ -198,7 +198,7 @@
               </Events>
               <Constraints>
                 <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
-                  <GridBagConstraints gridX="2" gridY="0" gridWidth="1" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="4" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="14" weightX="0.0" weightY="0.0"/>
+                  <GridBagConstraints gridX="3" gridY="0" gridWidth="1" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="4" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="14" weightX="0.0" weightY="0.0"/>
                 </Constraint>
               </Constraints>
             </Component>
@@ -209,6 +209,19 @@
               <Events>
                 <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="testConnectionButtonActionPerformed"/>
               </Events>
+              <Constraints>
+                <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+                  <GridBagConstraints gridX="1" gridY="0" gridWidth="1" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="4" insetsLeft="4" insetsBottom="0" insetsRight="12" anchor="14" weightX="1.0" weightY="0.0"/>
+                </Constraint>
+              </Constraints>
+            </Component>
+            <Component class="javax.swing.JButton" name="selectConnectionButton">
+              <Properties>
+                <Property name="text" type="java.lang.String" value="Select Connection "/>
+              </Properties>
+              <Events>
+                <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="selectConnectionButtonActionPerformed"/>
+              </Events>
               <Constraints>
                 <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
                   <GridBagConstraints gridX="0" gridY="0" gridWidth="1" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="4" insetsLeft="4" insetsBottom="0" insetsRight="12" anchor="14" weightX="1.0" weightY="0.0"/>
@@ -228,6 +241,9 @@
           </Constraints>
         </Component>
         <Component class="javax.swing.JPasswordField" name="password">
+          <AuxValues>
+            <AuxValue name="JavaCodeGenerator_VariableModifier" type="java.lang.Integer" value="0"/>
+          </AuxValues>
           <Constraints>
             <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
               <GridBagConstraints gridX="2" gridY="80" gridWidth="3" gridHeight="1" fill="2" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="10" weightX="0.0" weightY="1.0"/>

src/main/gui/net/sf/jailer/ui/DbConnectionDetailsEditor.java

@@ -16,6 +16,7 @@
 package net.sf.jailer.ui;
 
 import java.awt.Color;
+import java.awt.Frame;
 import java.awt.event.ActionEvent;
 import java.io.File;
 import java.net.URI;
@@ -42,6 +43,11 @@ public class DbConnectionDetailsEditor extends javax.swing.JDialog {
 	 * The connection to edit.
 	 */
 	private ConnectionInfo ci;
+
+	/**
+	 * <code>true</code> if connection must be tested on OK.
+	 */
+	private final boolean needsTest;
 	
 	/**
 	 * Opens detail editor for a connection.
@@ -50,6 +56,18 @@ public class DbConnectionDetailsEditor extends javax.swing.JDialog {
 	 * @return <code>true</code> if connection has been edited
 	 */
 	public boolean edit(ConnectionInfo ci) {
+		setDetails(ci);
+		setVisible(true);
+		return isOk;
+	}
+
+	/**
+	 * Sets details.
+	 * 
+	 * @param ci the connection
+	 * @return <code>true</code> if connection has been edited
+	 */
+	public void setDetails(ConnectionInfo ci) {
 		this.ci = ci;
 		alias.setText(ci.alias);
 		dbUrl.setText(ci.url);
@@ -60,16 +78,32 @@ public class DbConnectionDetailsEditor extends javax.swing.JDialog {
 		jar2.setText(ci.jar2);
 		jar3.setText(ci.jar3);
 		jar4.setText(ci.jar4);
-		setVisible(true);
-		return isOk;
 	}
-	
+
 	/** Creates new form DbConnectionDialog 
 	 * @param forNew */
 	public DbConnectionDetailsEditor(java.awt.Frame parent, final String jdbcHelpURL, boolean forNew) {
+		this(parent, jdbcHelpURL, forNew, null, false);
+	}
+
+	private final Frame parent;
+	
+	/** Creates new form DbConnectionDialog 
+	 * @param forNew 
+	 * @param b */
+	public DbConnectionDetailsEditor(java.awt.Frame parent, final String jdbcHelpURL, boolean forNew, InfoBar infoBar, boolean needsTest) {
 		super(parent, true);
+		this.parent = parent;
+		this.needsTest = needsTest;
 		initComponents();
-		if (forNew) {
+		if (needsTest) {
+			testConnectionButton.setVisible(false);
+		} else {
+			selectConnectionButton.setVisible(false);
+		}
+		if (infoBar != null) {
+			UIUtil.replace(infoBarLabel, infoBar);
+		} else if (forNew) {
 			UIUtil.replace(infoBarLabel, new InfoBar("New Connection",
 					"Enter connection credentials for the database.\n" +
 					"Replace placeholders (\"<...>\") with appropriate URL parameters.", null));
@@ -173,6 +207,7 @@ public class DbConnectionDetailsEditor extends javax.swing.JDialog {
         okButton = new javax.swing.JButton();
         cancelButton = new javax.swing.JButton();
         testConnectionButton = new javax.swing.JButton();
+        selectConnectionButton = new javax.swing.JButton();
         jLabel11 = new javax.swing.JLabel();
         password = new javax.swing.JPasswordField();
         helpjdbc = new javax.swing.JLabel();
@@ -288,14 +323,14 @@ public class DbConnectionDetailsEditor extends javax.swing.JDialog {
 
         jPanel2.setLayout(new java.awt.GridBagLayout());
 
-        okButton.setText(" Ok ");
+        okButton.setText("  Ok  ");
         okButton.addActionListener(new java.awt.event.ActionListener() {
             public void actionPerformed(java.awt.event.ActionEvent evt) {
                 okButtonActionPerformed(evt);
             }
         });
         gridBagConstraints = new java.awt.GridBagConstraints();
-        gridBagConstraints.gridx = 1;
+        gridBagConstraints.gridx = 2;
         gridBagConstraints.gridy = 0;
         gridBagConstraints.anchor = java.awt.GridBagConstraints.SOUTHEAST;
         gridBagConstraints.insets = new java.awt.Insets(4, 4, 0, 4);
@@ -308,7 +343,7 @@ public class DbConnectionDetailsEditor extends javax.swing.JDialog {
             }
         });
         gridBagConstraints = new java.awt.GridBagConstraints();
-        gridBagConstraints.gridx = 2;
+        gridBagConstraints.gridx = 3;
         gridBagConstraints.gridy = 0;
         gridBagConstraints.anchor = java.awt.GridBagConstraints.SOUTHEAST;
         gridBagConstraints.insets = new java.awt.Insets(4, 0, 0, 0);
@@ -321,13 +356,27 @@ public class DbConnectionDetailsEditor extends javax.swing.JDialog {
             }
         });
         gridBagConstraints = new java.awt.GridBagConstraints();
-        gridBagConstraints.gridx = 0;
+        gridBagConstraints.gridx = 1;
         gridBagConstraints.gridy = 0;
         gridBagConstraints.anchor = java.awt.GridBagConstraints.SOUTHEAST;
         gridBagConstraints.weightx = 1.0;
         gridBagConstraints.insets = new java.awt.Insets(4, 4, 0, 12);
         jPanel2.add(testConnectionButton, gridBagConstraints);
 
+        selectConnectionButton.setText("Select Connection ");
+        selectConnectionButton.addActionListener(new java.awt.event.ActionListener() {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
+                selectConnectionButtonActionPerformed(evt);
+            }
+        });
+        gridBagConstraints = new java.awt.GridBagConstraints();
+        gridBagConstraints.gridx = 0;
+        gridBagConstraints.gridy = 0;
+        gridBagConstraints.anchor = java.awt.GridBagConstraints.SOUTHEAST;
+        gridBagConstraints.weightx = 1.0;
+        gridBagConstraints.insets = new java.awt.Insets(4, 4, 0, 12);
+        jPanel2.add(selectConnectionButton, gridBagConstraints);
+
         gridBagConstraints = new java.awt.GridBagConstraints();
         gridBagConstraints.gridx = 0;
         gridBagConstraints.gridy = 100;
@@ -335,6 +384,7 @@ public class DbConnectionDetailsEditor extends javax.swing.JDialog {
         gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
         gridBagConstraints.weightx = 1.0;
         gridBagConstraints.weighty = 1.0;
+        gridBagConstraints.insets = new java.awt.Insets(0, 0, 4, 0);
         jPanel1.add(jPanel2, gridBagConstraints);
 
         jLabel11.setText(" ");
@@ -448,14 +498,23 @@ public class DbConnectionDetailsEditor extends javax.swing.JDialog {
         pack();
     }// </editor-fold>//GEN-END:initComponents
 
-private void okButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_okButtonActionPerformed
-		if (fillConnectionInfo()) {
-			   isOk = true;
-			   setVisible(false);
+    private void okButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_okButtonActionPerformed
+    	if (fillConnectionInfo()) {
+    		if (needsTest) {
+    			if (!DbConnectionDialog.testConnection(isVisible()? this : parent, ci)) {
+    				return;
+    			}
+    		}
+		   isOk = true;
+		   onClose(isOk, ci);
 		}
 	}//GEN-LAST:event_okButtonActionPerformed
 
-	   @SuppressWarnings("deprecation")
+	protected void onClose(boolean ok, ConnectionInfo info) {
+		setVisible(false);
+	}
+
+    @SuppressWarnings("deprecation")
 	private boolean fillConnectionInfo() {
 		boolean ok = true;
 		Color red = new Color(255, 200, 180);
@@ -486,13 +545,13 @@ private void okButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRS
 	}
 
 	private void cancelButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_cancelButtonActionPerformed
-		setVisible(false);
+		onClose(false, ci);
 	}//GEN-LAST:event_cancelButtonActionPerformed
 
 	private void testConnectionButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_testConnectionButtonActionPerformed
 		if (fillConnectionInfo()) {
-			if (DbConnectionDialog.testConnection(this, ci)) {
-				JOptionPane.showMessageDialog(this, "Successfully established connection.", "Connected", JOptionPane.INFORMATION_MESSAGE);
+			if (DbConnectionDialog.testConnection(isVisible()? this : parent, ci)) {
+				JOptionPane.showMessageDialog(isVisible()? this : parent, "Successfully established connection.", "Connected", JOptionPane.INFORMATION_MESSAGE);
 			}
 		}
 	}//GEN-LAST:event_testConnectionButtonActionPerformed
@@ -509,6 +568,13 @@ private void okButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRS
     private void loadButton4ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_loadButton4ActionPerformed
     }//GEN-LAST:event_loadButton4ActionPerformed
 
+    private void selectConnectionButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_selectConnectionButtonActionPerformed
+        onSelect();
+    }//GEN-LAST:event_selectConnectionButtonActionPerformed
+
+    protected void onSelect() {
+	}
+
     // Variables declaration - do not modify//GEN-BEGIN:variables
     public javax.swing.JTextField alias;
     private javax.swing.JButton cancelButton;
@@ -539,7 +605,8 @@ private void okButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRS
     private javax.swing.JButton loadButton3;
     private javax.swing.JButton loadButton4;
     private javax.swing.JButton okButton;
-    private javax.swing.JPasswordField password;
+    javax.swing.JPasswordField password;
+    private javax.swing.JButton selectConnectionButton;
     private javax.swing.JButton testConnectionButton;
     public javax.swing.JTextField user;
     // End of variables declaration//GEN-END:variables

src/main/gui/net/sf/jailer/ui/DbConnectionDialog.java

@@ -241,7 +241,7 @@ public class DbConnectionDialog extends javax.swing.JDialog {
 						if (render instanceof JLabel) {
 							if (!isSelected) {
 								final Color BG1 = new Color(255, 255, 255);
-								final Color BG2 = new Color(230, 255, 255);
+								final Color BG2 = new Color(242, 255, 242);
 								((JLabel) render)
 										.setBackground((row % 2 == 0) ? BG1
 												: BG2);
@@ -354,11 +354,7 @@ public class DbConnectionDialog extends javax.swing.JDialog {
 
 	private boolean inRefresh = false;
 
-	private String jdbcHelpURL = "http://jailer.sourceforge.net/doc/jdbc.html?src=app";
-
-	public synchronized void setJdbcHelpURL(String jdbcHelpURL) {
-		this.jdbcHelpURL = jdbcHelpURL;
-	}
+	public static final String jdbcHelpURL = "http://jailer.sourceforge.net/doc/jdbc.html?src=app";
 
 	/**
 	 * Refreshes the dialog after model changes.
@@ -526,7 +522,7 @@ public class DbConnectionDialog extends javax.swing.JDialog {
 			ConnectionInfo ci = new ConnectionInfo(executionContext);
 			ci.alias = "Demo Scott";
 			ci.driverClass = "org.h2.Driver";
-			ci.jar1 = "lib" + File.separator + "h2-1.3.160.jar";
+			ci.jar1 = "lib" + File.separator + "h2-1.3.175.jar";
 			ci.url = "jdbc:h2:" + Environment.newFile("demo-scott").getPath();
 			ci.user = "sa";
 			ci.password = "";
@@ -538,7 +534,7 @@ public class DbConnectionDialog extends javax.swing.JDialog {
 			ConnectionInfo ci = new ConnectionInfo(executionContext);
 			ci.alias = "Demo Sakila";
 			ci.driverClass = "org.h2.Driver";
-			ci.jar1 = "lib" + File.separator + "h2-1.3.160.jar";
+			ci.jar1 = "lib" + File.separator + "h2-1.3.175.jar";
 			ci.url = "jdbc:h2:" + Environment.newFile("demo-sakila").getPath();
 			ci.user = "sa";
 			ci.password = "";

src/main/gui/net/sf/jailer/ui/ExportDialog.form

@@ -11,6 +11,7 @@
   </Properties>
   <SyntheticProperties>
     <SyntheticProperty name="formSizePolicy" type="int" value="1"/>
+    <SyntheticProperty name="generateCenter" type="boolean" value="false"/>
   </SyntheticProperties>
   <AuxValues>
     <AuxValue name="FormSettings_autoResourcing" type="java.lang.Integer" value="0"/>
@@ -439,7 +440,7 @@
                         <Property name="foreground" type="java.awt.Color" editor="org.netbeans.beaninfo.editors.ColorEditor">
                           <Color blue="80" green="80" red="80" type="rgb"/>
                         </Property>
-                        <Property name="text" type="java.lang.String" value="  (best for single-thread performance)"/>
+                        <Property name="text" type="java.lang.String" value="  (best for single-threaded performance)"/>
                       </Properties>
                       <Constraints>
                         <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
@@ -452,7 +453,7 @@
                         <Property name="foreground" type="java.awt.Color" editor="org.netbeans.beaninfo.editors.ColorEditor">
                           <Color blue="80" green="80" red="80" type="rgb"/>
                         </Property>
-                        <Property name="text" type="java.lang.String" value="  (best for multi-thread performance)"/>
+                        <Property name="text" type="java.lang.String" value="  (best for multi-threaded performance)"/>
                       </Properties>
                       <Constraints>
                         <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
@@ -465,7 +466,7 @@
                         <Property name="foreground" type="java.awt.Color" editor="org.netbeans.beaninfo.editors.ColorEditor">
                           <Color blue="80" green="80" red="80" type="rgb"/>
                         </Property>
-                        <Property name="text" type="java.lang.String" value="  (no write-access needed)"/>
+                        <Property name="text" type="java.lang.String" value="  (no write-access required)"/>
                       </Properties>
                       <Constraints>
                         <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">

src/main/gui/net/sf/jailer/ui/ExtractionModelEditor.java

@@ -19,7 +19,6 @@ import java.awt.BasicStroke;
 import java.awt.Color;
 import java.awt.Component;
 import java.awt.Container;
-import java.awt.Cursor;
 import java.awt.Dimension;
 import java.awt.Graphics;
 import java.awt.Graphics2D;
@@ -218,7 +217,7 @@ public class ExtractionModelEditor extends javax.swing.JPanel {
 	 * The execution context.
 	 */
 	private final ExecutionContext executionContext;
-	
+
 	/** 
 	 * Creates new form ModelTree.
 	 *  
@@ -240,12 +239,6 @@ public class ExtractionModelEditor extends javax.swing.JPanel {
 			}
 		};
 		columnMapperDialog = new ColumnMapperDialog(extractionModelFrame, parametersGetter);
-		try {
-			dataModel = new DataModel(executionContext);
-		} catch (Exception e) {
-			UIUtil.showException(this, "Error in Data Model", e);
-			return;
-		}
 		try {
 			if (extractionModelFile == null || !new File(extractionModelFile).exists()) {
 				needsSave = extractionModelFile != null;
@@ -282,10 +275,10 @@ public class ExtractionModelEditor extends javax.swing.JPanel {
 			public void itemStateChanged(ItemEvent arg0) {
 				Object o1 = rootTable.getSelectedItem();
 				Object o2 = subjectTable.getSelectedItem();
-				resetFocus.setEnabled(!(o1 == null && o2 == null || o1 != null && o1.equals(o2)));
+				 resetFocus.setEnabled(!(o1 == null && o2 == null || o1 != null && o1.equals(o2)));
 			}
 		};
-				
+
 		rootTable.addItemListener(aListener);
 		subjectTable.addItemListener(aListener);
 		
@@ -320,6 +313,10 @@ public class ExtractionModelEditor extends javax.swing.JPanel {
 
 		closureView.addTabComponent("Closure Border", closureBorderView.getContentPane());
 		closureBorderView.dispose();
+
+		restrDepsView = extractionModelFrame.restrictedDependenciesView.getContentPane();
+		closureView.addTabComponent("Restricted Dependencies", restrDepsView);
+		extractionModelFrame.restrictedDependenciesView.dispose();
 		
 		Container cVContentPane = closureView.getContentPane();
 		closureView.dispose();
@@ -402,7 +399,7 @@ public class ExtractionModelEditor extends javax.swing.JPanel {
 		});
 		final TableCellRenderer defaultTableCellRenderer = restrictionsTable.getDefaultRenderer(String.class);
 		final Color BG1 = new Color(255, 255, 255);
-		final Color BG2 = new Color(230, 255, 255);
+		final Color BG2 = new Color(242, 255, 242);
 		restrictionsTable.setDefaultRenderer(Object.class, new TableCellRenderer() {
 			@Override
 			public Component getTableCellRendererComponent(JTable table,
@@ -480,6 +477,15 @@ public class ExtractionModelEditor extends javax.swing.JPanel {
 				onApply(false);
 			}
 		});
+		restrictionEditor.fkToNullCheckBox.addActionListener(new ActionListener() {
+			@Override
+			public void actionPerformed(ActionEvent e) {
+				if (currentAssociation != null) {
+					currentAssociation.setOrResetFKNullFilter(restrictionEditor.fkToNullCheckBox.isSelected());
+				}
+				onApply(false);
+			}
+		});
 //		restrictionEditor.jump.addActionListener(new ActionListener() {
 //			public void actionPerformed(ActionEvent e) {
 //				onJump();
@@ -659,7 +665,7 @@ public class ExtractionModelEditor extends javax.swing.JPanel {
 	/**
 	 * The "closure view" component.
 	 */
-	private ClosureView closureView;
+	ClosureView closureView;
 
 	void setOrientation(boolean horizontal) {
 		isHorizontalLayout = horizontal;
@@ -1388,7 +1394,7 @@ public class ExtractionModelEditor extends javax.swing.JPanel {
 						if (selNode instanceof Association) {
 							table = ((Association) selNode).destination;
 						}
-						JPopupMenu popup = graphView.createPopupMenu(table, false);
+						JPopupMenu popup = graphView.createPopupMenu(table, null, false);
 						popup.show(evt.getComponent(), evt.getX(), evt.getY());
 					}
 				}
@@ -1763,7 +1769,11 @@ public class ExtractionModelEditor extends javax.swing.JPanel {
 	}
 
 	private void initRestrictedDependencyWarningField() {
-		restrictionEditor.restrictedDependencyWarning.setVisible(currentAssociation != null && !ScriptFormat.XML.equals(scriptFormat) && currentAssociation.isInsertDestinationBeforeSource() && currentAssociation.isRestricted());
+		boolean restrictedDep = currentAssociation != null && !ScriptFormat.XML.equals(scriptFormat) && currentAssociation.isInsertDestinationBeforeSource() && currentAssociation.isRestricted();
+		restrictionEditor.restrictedDependencyWarning.setVisible(restrictedDep);
+		restrictionEditor.fkToNullCheckBox.setVisible(restrictedDep);
+		restrictionEditor.fkToNullCheckBox.setEnabled(restrictedDep && currentAssociation.hasNullableFK());
+		restrictionEditor.fkToNullCheckBox.setSelected(restrictedDep && currentAssociation.fkHasNullFilter());
 	}
 
 	/**
@@ -1801,6 +1811,11 @@ public class ExtractionModelEditor extends javax.swing.JPanel {
 				needsSave = true;
 				extractionModelFrame.updateTitle(needsSave);
 			}
+
+			if (restrictionEditor.restricted.isSelected() && currentAssociation.hasNullableFK() && currentAssociation.fkHasNullFilter()) {
+				currentAssociation.setOrResetFKNullFilter(false);
+			}
+
 			String condition;
 			if (restrictionEditor.ignore.getModel().isSelected()) {
 				condition = "ignore";
@@ -2048,10 +2063,10 @@ public class ExtractionModelEditor extends javax.swing.JPanel {
 	private void additionalSubjectsButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_additionalSubjectsButtonActionPerformed
 		AdditionalSubjectsDialog additionalSubjectsDialog;
 		try {
-			setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
+			UIUtil.setWaitCursor(this);
 			additionalSubjectsDialog = new AdditionalSubjectsDialog(extractionModelFrame, extractionModel, subject, condition.getText());
 		} finally {
-			setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
+			UIUtil.resetWaitCursor(this);
 		}
 		if (additionalSubjectsDialog.edit()) {
 			needsSave = true;
@@ -2223,24 +2238,28 @@ public class ExtractionModelEditor extends javax.swing.JPanel {
 					}
 				}
 			}
-			for (DefaultMutableTreeNode node: treeNodes) {
-				if (node.getChildCount() > 0) {
-					Table t = null;
-					Association a = null;
-					if (node.getUserObject() instanceof Association) {
-						a = (Association) node.getUserObject();
-						t = a.destination;
-					}
-					if (t != null && a != null && table.equals(t)) {
-						select(a);
-						TreePath treePath = new TreePath(node.getPath());
-						tree.expandPath(treePath);
-						for (int i = 0; i < node.getChildCount(); ++i) {
-							DefaultMutableTreeNode c = (DefaultMutableTreeNode) node.getChildAt(i);
-							tree.collapsePath(new TreePath(c.getPath()));
+			for (boolean checkVisibility: new boolean [] { true, false }) {
+				for (DefaultMutableTreeNode node: treeNodes) {
+					if (node.getChildCount() > 0) {
+						Table t = null;
+						Association a = null;
+						if (node.getUserObject() instanceof Association) {
+							a = (Association) node.getUserObject();
+							t = a.destination;
+						}
+						if (t != null && a != null && table.equals(t)) {
+							if (!checkVisibility || (graphView.isTableVisible(a.source) && graphView.isTableVisible(a.destination))) {
+								select(a);
+								TreePath treePath = new TreePath(node.getPath());
+								tree.expandPath(treePath);
+								for (int i = 0; i < node.getChildCount(); ++i) {
+									DefaultMutableTreeNode c = (DefaultMutableTreeNode) node.getChildAt(i);
+									tree.collapsePath(new TreePath(c.getPath()));
+								}
+								tree.scrollPathToVisible(treePath);
+								return true;
+							}
 						}
-						tree.scrollPathToVisible(treePath);
-						return true;
 					}
 				}
 			}
@@ -2931,7 +2950,9 @@ public class ExtractionModelEditor extends javax.swing.JPanel {
     private javax.swing.JPanel xmlMappingPanel;
     private javax.swing.JButton xmlTagApply;
     // End of variables declaration//GEN-END:variables
-	
+    
+    Container restrDepsView;
+    
 	private Icon dropDownIcon;
 	private Icon conditionEditorIcon;
 	private Icon conditionEditorSelectedIcon;

src/main/gui/net/sf/jailer/ui/ExtractionModelFrame.form

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" ?>
 
-<Form version="1.2" maxVersion="1.2" type="org.netbeans.modules.form.forminfo.JFrameFormInfo">
+<Form version="1.9" maxVersion="1.9" type="org.netbeans.modules.form.forminfo.JFrameFormInfo">
   <NonVisualComponents>
     <Component class="javax.swing.ButtonGroup" name="steptimeGroup">
     </Component>
@@ -471,14 +471,6 @@
                 <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="cycleViewActionPerformed"/>
               </Events>
             </MenuItem>
-            <MenuItem class="javax.swing.JMenuItem" name="restrictedDependenciesToolMenuItem">
-              <Properties>
-                <Property name="text" type="java.lang.String" value="Restricted Dependencies View"/>
-              </Properties>
-              <Events>
-                <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="restrictedDependenciesToolMenuItemActionPerformed"/>
-              </Events>
-            </MenuItem>
             <MenuItem class="javax.swing.JMenuItem" name="renderHtml">
               <Properties>
                 <Property name="text" type="java.lang.String" value="HTML Rendering"/>
@@ -564,14 +556,80 @@
 
   <Layout class="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout"/>
   <SubComponents>
-    <Container class="javax.swing.JPanel" name="editorPanel">
+    <Container class="javax.swing.JLayeredPane" name="jLayeredPane1">
       <Constraints>
         <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
-          <GridBagConstraints gridX="-1" gridY="-1" gridWidth="1" gridHeight="1" fill="1" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="10" weightX="1.0" weightY="1.0"/>
+          <GridBagConstraints gridX="1" gridY="1" gridWidth="1" gridHeight="1" fill="1" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="10" weightX="1.0" weightY="1.0"/>
         </Constraint>
       </Constraints>
 
-      <Layout class="org.netbeans.modules.form.compat2.layouts.DesignCardLayout"/>
+      <Layout class="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout"/>
+      <SubComponents>
+        <Container class="javax.swing.JPanel" name="editorPanel">
+          <Constraints>
+            <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+              <GridBagConstraints gridX="1" gridY="1" gridWidth="1" gridHeight="1" fill="1" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="10" weightX="1.0" weightY="1.0"/>
+            </Constraint>
+          </Constraints>
+
+          <Layout class="org.netbeans.modules.form.compat2.layouts.DesignCardLayout"/>
+        </Container>
+        <Container class="javax.swing.JPanel" name="updateInfoPanel">
+          <Properties>
+            <Property name="background" type="java.awt.Color" editor="org.netbeans.beaninfo.editors.ColorEditor">
+              <Color blue="ec" green="ff" red="ff" type="rgb"/>
+            </Property>
+          </Properties>
+          <AuxValues>
+            <AuxValue name="JLayeredPane.layer" type="java.lang.Integer" value="200"/>
+          </AuxValues>
+          <Constraints>
+            <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+              <GridBagConstraints gridX="1" gridY="1" gridWidth="1" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="32" insetsRight="24" anchor="14" weightX="0.0" weightY="0.0"/>
+            </Constraint>
+          </Constraints>
+
+          <Layout class="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout"/>
+          <SubComponents>
+            <Component class="javax.swing.JLabel" name="updateInfoLabel">
+              <Properties>
+                <Property name="text" type="java.lang.String" value="Release x available"/>
+              </Properties>
+              <Constraints>
+                <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+                  <GridBagConstraints gridX="1" gridY="1" gridWidth="2" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="4" insetsLeft="4" insetsBottom="4" insetsRight="4" anchor="17" weightX="0.0" weightY="0.0"/>
+                </Constraint>
+              </Constraints>
+            </Component>
+            <Component class="javax.swing.JButton" name="downloadButton">
+              <Properties>
+                <Property name="text" type="java.lang.String" value="Download"/>
+              </Properties>
+              <Events>
+                <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="downloadButtonActionPerformed"/>
+              </Events>
+              <Constraints>
+                <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+                  <GridBagConstraints gridX="1" gridY="2" gridWidth="1" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="4" insetsBottom="4" insetsRight="0" anchor="10" weightX="0.0" weightY="0.0"/>
+                </Constraint>
+              </Constraints>
+            </Component>
+            <Component class="javax.swing.JButton" name="jButton1">
+              <Properties>
+                <Property name="text" type="java.lang.String" value="Close"/>
+              </Properties>
+              <Events>
+                <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="jButton1ActionPerformed"/>
+              </Events>
+              <Constraints>
+                <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+                  <GridBagConstraints gridX="2" gridY="2" gridWidth="1" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="2" insetsBottom="4" insetsRight="4" anchor="10" weightX="0.0" weightY="0.0"/>
+                </Constraint>
+              </Constraints>
+            </Component>
+          </SubComponents>
+        </Container>
+      </SubComponents>
     </Container>
   </SubComponents>
 </Form>

src/main/gui/net/sf/jailer/ui/ExtractionModelFrame.java

@@ -16,7 +16,7 @@
 package net.sf.jailer.ui;
 
 import java.awt.CardLayout;
-import java.awt.Cursor;
+import java.awt.Color;
 import java.awt.Frame;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
@@ -44,12 +44,12 @@ import java.util.logging.Logger;
 import javax.swing.ImageIcon;
 import javax.swing.InputMap;
 import javax.swing.JComponent;
+import javax.swing.JFrame;
 import javax.swing.JMenu;
 import javax.swing.JMenuItem;
 import javax.swing.JOptionPane;
 import javax.swing.KeyStroke;
 import javax.swing.SwingUtilities;
-import javax.swing.ToolTipManager;
 import javax.swing.UIManager;
 import javax.swing.UIManager.LookAndFeelInfo;
 import javax.swing.WindowConstants;
@@ -69,12 +69,14 @@ import net.sf.jailer.datamodel.Table;
 import net.sf.jailer.ddl.DDLCreator;
 import net.sf.jailer.extractionmodel.ExtractionModel;
 import net.sf.jailer.extractionmodel.ExtractionModel.AdditionalSubject;
+import net.sf.jailer.modelbuilder.JDBCMetaDataBasedModelElementFinder;
 import net.sf.jailer.modelbuilder.ModelBuilder;
 import net.sf.jailer.render.HtmlDataModelRenderer;
 import net.sf.jailer.subsetting.ScriptFormat;
 import net.sf.jailer.ui.associationproposer.AssociationProposerView;
 import net.sf.jailer.ui.databrowser.DataBrowser;
 import net.sf.jailer.ui.progress.ExportAndDeleteStageProgressListener;
+import net.sf.jailer.ui.util.UpdateInfoManager;
 import net.sf.jailer.util.CancellationHandler;
 import net.sf.jailer.util.PrintUtil;
 
@@ -140,9 +142,33 @@ public class ExtractionModelFrame extends javax.swing.JFrame {
 		this.executionContext = executionContext;
 		initComponents();
 		initSandbox();
-		initAnimationSteptime();
+        UpdateInfoManager.checkUpdateAvailability(updateInfoPanel, updateInfoLabel);
+        initAnimationSteptime();
 		isHorizontalLayout = isHorizonal;
 		horizontalLayoutMenuItem.setSelected(isHorizontalLayout);
+
+		restrictedDependenciesView = new RestrictedDependenciesListDialog(this) {
+			private static final long serialVersionUID = -7426280043553389753L;
+			@Override
+			protected Table getRoot() {
+				return extractionModelEditor == null? null : extractionModelEditor.root;
+			}
+			@Override
+			protected DataModel getDataModel() {
+				return extractionModelEditor == null? null : extractionModelEditor.dataModel;
+			}
+			@Override
+			protected void removeRestrictions(Collection<Association> associations) {
+				if (extractionModelEditor != null) {
+					extractionModelEditor.removeRestrictions(associations);
+				}
+			}
+			@Override
+			protected void onSelect(Association association) {
+				extractionModelEditor.select(association);
+			}
+		};
+		
 		editorPanel.add(extractionModelEditor = new ExtractionModelEditor(extractionModelFile, this, isHorizontalLayout, getConnectivityState(), getConnectivityStateToolTip(), executionContext), "editor");
 		extractionModelEditor.extractionModelFile = extractionModelFile;
 		pack();
@@ -173,28 +199,6 @@ public class ExtractionModelFrame extends javax.swing.JFrame {
 		
 		updateMenuItems();
 
-		restrictedDependenciesView = new RestrictedDependenciesListDialog(this) {
-			private static final long serialVersionUID = -7426280043553389753L;
-			@Override
-			protected Table getRoot() {
-				return extractionModelEditor == null? null : extractionModelEditor.root;
-			}
-			@Override
-			protected DataModel getDataModel() {
-				return extractionModelEditor == null? null : extractionModelEditor.dataModel;
-			}
-			@Override
-			protected void removeRestrictions(Collection<Association> associations) {
-				if (extractionModelEditor != null) {
-					extractionModelEditor.removeRestrictions(associations);
-				}
-			}
-			@Override
-			protected void onSelect(Association association) {
-				extractionModelEditor.select(association);
-			}
-		};
-		
 		cycleViewDialog = new CyclesView(this);
 		filterEditorDialog = new FilterEditorDialog(this, new ParameterSelector.ParametersGetter() {
 			@Override
@@ -214,7 +218,8 @@ public class ExtractionModelFrame extends javax.swing.JFrame {
 				for (final String item: list) {
 					JMenuItem menuItem = new JMenuItem(item.split(",")[0]);
 					sandBox.add(menuItem);
-					menuItem.addActionListener(new ActionListener() {
+					final ActionListener a;
+					menuItem.addActionListener(a = new ActionListener() {
 						@Override
 						public void actionPerformed(ActionEvent e) {
 							try {
@@ -222,12 +227,20 @@ public class ExtractionModelFrame extends javax.swing.JFrame {
 								String tmpFileName = Configuration.getInstance().createTempFile().getPath();
 								extractionModelEditor.save(tmpFileName);
 								ExtractionModel extractionModel = new ExtractionModel(tmpFileName, new HashMap<String, String>(), new HashMap<String, String>(), executionContext);
-								c.getMethod("main", ExtractionModel.class).invoke(c.newInstance(), extractionModel);
+								c.getMethod("main", ExtractionModel.class, JFrame.class).invoke(c.newInstance(), extractionModel, ExtractionModelFrame.this);
 							} catch (Throwable t) {
 								UIUtil.showException(ExtractionModelFrame.this, "Error", t);
 							}
 						}
 					});
+					if (menuItem.getText().endsWith("!")) {
+						UIUtil.invokeLater(4, new Runnable() {
+							@Override
+							public void run() {
+								a.actionPerformed(null);
+							}
+						});
+					}
 				}
 			}
 		} catch (Throwable e) {
@@ -280,7 +293,12 @@ public class ExtractionModelFrame extends javax.swing.JFrame {
         java.awt.GridBagConstraints gridBagConstraints;
 
         steptimeGroup = new javax.swing.ButtonGroup();
+        jLayeredPane1 = new javax.swing.JLayeredPane();
         editorPanel = new javax.swing.JPanel();
+        updateInfoPanel = new javax.swing.JPanel();
+        updateInfoLabel = new javax.swing.JLabel();
+        downloadButton = new javax.swing.JButton();
+        jButton1 = new javax.swing.JButton();
         jMenuBar2 = new javax.swing.JMenuBar();
         fileMenu = new javax.swing.JMenu();
         newModel = new javax.swing.JMenuItem();
@@ -338,7 +356,6 @@ public class ExtractionModelFrame extends javax.swing.JFrame {
         openDataBrowserItem = new javax.swing.JMenuItem();
         queryBuilder = new javax.swing.JMenuItem();
         cycleView = new javax.swing.JMenuItem();
-        restrictedDependenciesToolMenuItem = new javax.swing.JMenuItem();
         renderHtml = new javax.swing.JMenuItem();
         jMenu2 = new javax.swing.JMenu();
         helpContent = new javax.swing.JMenuItem();
@@ -365,12 +382,68 @@ public class ExtractionModelFrame extends javax.swing.JFrame {
         });
         getContentPane().setLayout(new java.awt.GridBagLayout());
 
+        jLayeredPane1.setLayout(new java.awt.GridBagLayout());
+
         editorPanel.setLayout(new java.awt.CardLayout());
         gridBagConstraints = new java.awt.GridBagConstraints();
+        gridBagConstraints.gridx = 1;
+        gridBagConstraints.gridy = 1;
         gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
         gridBagConstraints.weightx = 1.0;
         gridBagConstraints.weighty = 1.0;
-        getContentPane().add(editorPanel, gridBagConstraints);
+        jLayeredPane1.add(editorPanel, gridBagConstraints);
+
+        updateInfoPanel.setBackground(new java.awt.Color(255, 255, 236));
+        updateInfoPanel.setLayout(new java.awt.GridBagLayout());
+
+        updateInfoLabel.setText("Release x available");
+        gridBagConstraints = new java.awt.GridBagConstraints();
+        gridBagConstraints.gridx = 1;
+        gridBagConstraints.gridy = 1;
+        gridBagConstraints.gridwidth = 2;
+        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
+        gridBagConstraints.insets = new java.awt.Insets(4, 4, 4, 4);
+        updateInfoPanel.add(updateInfoLabel, gridBagConstraints);
+
+        downloadButton.setText("Download");
+        downloadButton.addActionListener(new java.awt.event.ActionListener() {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
+                downloadButtonActionPerformed(evt);
+            }
+        });
+        gridBagConstraints = new java.awt.GridBagConstraints();
+        gridBagConstraints.gridx = 1;
+        gridBagConstraints.gridy = 2;
+        gridBagConstraints.insets = new java.awt.Insets(0, 4, 4, 0);
+        updateInfoPanel.add(downloadButton, gridBagConstraints);
+
+        jButton1.setText("Close");
+        jButton1.addActionListener(new java.awt.event.ActionListener() {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
+                jButton1ActionPerformed(evt);
+            }
+        });
+        gridBagConstraints = new java.awt.GridBagConstraints();
+        gridBagConstraints.gridx = 2;
+        gridBagConstraints.gridy = 2;
+        gridBagConstraints.insets = new java.awt.Insets(0, 2, 4, 4);
+        updateInfoPanel.add(jButton1, gridBagConstraints);
+
+        jLayeredPane1.setLayer(updateInfoPanel, javax.swing.JLayeredPane.MODAL_LAYER);
+        gridBagConstraints = new java.awt.GridBagConstraints();
+        gridBagConstraints.gridx = 1;
+        gridBagConstraints.gridy = 1;
+        gridBagConstraints.anchor = java.awt.GridBagConstraints.SOUTHEAST;
+        gridBagConstraints.insets = new java.awt.Insets(0, 0, 32, 24);
+        jLayeredPane1.add(updateInfoPanel, gridBagConstraints);
+
+        gridBagConstraints = new java.awt.GridBagConstraints();
+        gridBagConstraints.gridx = 1;
+        gridBagConstraints.gridy = 1;
+        gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
+        gridBagConstraints.weightx = 1.0;
+        gridBagConstraints.weighty = 1.0;
+        getContentPane().add(jLayeredPane1, gridBagConstraints);
 
         fileMenu.setText("File");
         fileMenu.addActionListener(new java.awt.event.ActionListener() {
@@ -759,14 +832,6 @@ public class ExtractionModelFrame extends javax.swing.JFrame {
         });
         jMenu3.add(cycleView);
 
-        restrictedDependenciesToolMenuItem.setText("Restricted Dependencies View");
-        restrictedDependenciesToolMenuItem.addActionListener(new java.awt.event.ActionListener() {
-            public void actionPerformed(java.awt.event.ActionEvent evt) {
-                restrictedDependenciesToolMenuItemActionPerformed(evt);
-            }
-        });
-        jMenu3.add(restrictedDependenciesToolMenuItem);
-
         renderHtml.setText("HTML Rendering");
         renderHtml.addActionListener(new java.awt.event.ActionListener() {
             public void actionPerformed(java.awt.event.ActionEvent evt) {
@@ -1008,6 +1073,7 @@ public class ExtractionModelFrame extends javax.swing.JFrame {
 			@Override
 			public Boolean call() {
 				try {
+					JDBCMetaDataBasedModelElementFinder.privilegedSessionProvider = new PrivilegedSessionProviderDialog.Provider(ExtractionModelFrame.this);
 					if (connectToDBIfNeeded("Analyze Database")) {
 						List<String> args = new ArrayList<String>();
 						args.add("build-model-wo-merge");
@@ -1016,13 +1082,13 @@ public class ExtractionModelFrame extends javax.swing.JFrame {
 						AnalyseOptionsDialog analyseOptionsDialog = new AnalyseOptionsDialog(ExtractionModelFrame.this, extractionModelEditor.dataModel, executionContext);
 						boolean[] isDefaultSchema = new boolean[1];
 						String[] defaultSchema = new String[1];
-						setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
+						UIUtil.setWaitCursor(ExtractionModelFrame.this);
 						List<String> schemas;
 						try {
 							CancellationHandler.reset(null);
 							schemas = dbConnectionDialog.getDBSchemas(defaultSchema);
 						} finally {
-							setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
+							UIUtil.resetWaitCursor(ExtractionModelFrame.this);
 						}
 						if (analyseOptionsDialog.edit(schemas, defaultSchema[0], isDefaultSchema, dbConnectionDialog.currentConnection.user)) {
 							String schema = analyseOptionsDialog.getSelectedSchema();
@@ -1049,6 +1115,7 @@ public class ExtractionModelFrame extends javax.swing.JFrame {
 					UIUtil.showException(ExtractionModelFrame.this, "Error", e);
 				} finally {
 					ModelBuilder.assocFilter = null;
+					JDBCMetaDataBasedModelElementFinder.privilegedSessionProvider = null;
 				}
 				return true;
 			}
@@ -1084,11 +1151,10 @@ public class ExtractionModelFrame extends javax.swing.JFrame {
 				if (restrictedDependency != null) {
 					switch (JOptionPane.showOptionDialog(this, 
 							"Dependency from '" + restrictedDependency.source.getName() + "' to '" + restrictedDependency.destination.getName() + "'\n" +
-							"is restricted.\nReferential integrity is not guaranteed!", "Restricted Dependency", JOptionPane.YES_NO_OPTION, JOptionPane.INFORMATION_MESSAGE, null, new Object[] { "Ok", "Cancel", "Show Dependency" }, "Cancel")) {
+							"is restricted.\nReferential integrity is not guaranteed!", "Restricted Dependency", JOptionPane.YES_NO_OPTION, JOptionPane.INFORMATION_MESSAGE, null, new Object[] { "Ok", "Cancel", "Show dependency" }, "Cancel")) {
 					case 1: return;
 					case 2: 
-						restrictedDependenciesView.setVisible(true);
-						restrictedDependenciesView.toFront();
+						extractionModelEditor.closureView.selectTabComponent(extractionModelEditor.restrDepsView);
 						return;
 					}
 				}
@@ -1111,7 +1177,6 @@ public class ExtractionModelFrame extends javax.swing.JFrame {
 						List<String> args = new ArrayList<String>();
 						args.add(tmpFileName != null? tmpFileName : extractionModelEditor.extractionModelFile);
 						dbConnectionDialog.addDbArgs(args);
-						Session.closeTemporaryTableSession();
 						BasicDataSource dataSource = new BasicDataSource(dbConnectionDialog.currentConnection.driverClass, dbConnectionDialog.currentConnection.url, dbConnectionDialog.currentConnection.user, dbConnectionDialog.getPassword(), 0, dbConnectionDialog.currentJarURLs()); 
 						Session session = SessionForUI.createSession(dataSource, dataSource.dbms, this);
 
@@ -1131,7 +1196,6 @@ public class ExtractionModelFrame extends javax.swing.JFrame {
 	
 							ExportDialog exportDialog = new ExportDialog(this, extractionModelEditor.dataModel, extractionModelEditor.getSubject(), extractionModelEditor.getSubjectCondition(), extractionModelEditor.extractionModel.additionalSubjects, session, args, dbConnectionDialog.getUser(), dbConnectionDialog.getPassword(), checkRI, dbConnectionDialog, extractionModelEditor.extractionModelFile, executionContext);
 							session.shutDown();
-							Session.closeTemporaryTableSession();
 							if (exportDialog.isOk()) {
 								exportDialog.fillCLIArgs(args);
 								List<String> ddlArgs = new ArrayList<String>();
@@ -1198,7 +1262,9 @@ public class ExtractionModelFrame extends javax.swing.JFrame {
 	private Association findRestrictedDependency(DataModel dataModel) {
 		for (Association association: dataModel.namedAssociations.values()) {
 			if (association.isInsertDestinationBeforeSource() && association.isRestricted()) {
-				return association;
+				if (!association.fkHasNullFilter()) {
+					return association;
+				}
 			}
 		}
 		return null;
@@ -1326,10 +1392,10 @@ public class ExtractionModelFrame extends javax.swing.JFrame {
 					load(modelFile);
 				} else {
 					try {
-						setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
-						createFrame(modelFile, false);
+						UIUtil.setWaitCursor(this);
+						createFrame(modelFile, false, executionContext);
 					} finally {
-						setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
+						UIUtil.resetWaitCursor(this);
 					}
 				}
 			}
@@ -1365,7 +1431,7 @@ public class ExtractionModelFrame extends javax.swing.JFrame {
 				JOptionPane.showMessageDialog(this, "Unable to load \"" + new File(modelFile).getName() + "\"\nExtraction model is assigned to data model \"" + DataModelManager.getModelDetails(dmf, executionContext).a + "\"", "Wrong Data Model", JOptionPane.ERROR_MESSAGE);
 				return;
 			}
-			setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
+			UIUtil.setWaitCursor(this);
 			extractionModelEditor.extractionModelFrame = null;
 			editorPanel.remove(extractionModelEditor);
 			extractionModelEditor = null;
@@ -1378,13 +1444,13 @@ public class ExtractionModelFrame extends javax.swing.JFrame {
 		} catch (Throwable t) {
 			UIUtil.showException(this, "Error", t);
 		} finally {
-			setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
+			UIUtil.resetWaitCursor(this);
 		}
 	}
 
 	private void newModelActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_newModelActionPerformed
 		try {
-			createFrame(null, false);
+			createFrame(null, false, executionContext);
 		} catch (Throwable t) {
 			UIUtil.showException(this, "Error", t);
 		} finally {
@@ -1393,7 +1459,7 @@ public class ExtractionModelFrame extends javax.swing.JFrame {
 
 	private void reload() {
 		try {
-			setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
+			UIUtil.setWaitCursor(this);
 			extractionModelEditor.extractionModelFrame = null;
 			editorPanel.remove(extractionModelEditor);
 			editorPanel.add(extractionModelEditor = new ExtractionModelEditor(extractionModelEditor.extractionModelFile, this, isHorizontalLayout, getConnectivityState(), getConnectivityStateToolTip(), executionContext), "editor");
@@ -1405,7 +1471,7 @@ public class ExtractionModelFrame extends javax.swing.JFrame {
 		} catch (Throwable t) {
 			UIUtil.showException(this, "Error", t);
 		} finally {
-			setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
+			UIUtil.resetWaitCursor(this);
 		}
 	}
 
@@ -1626,11 +1692,6 @@ public class ExtractionModelFrame extends javax.swing.JFrame {
 		extractionModelEditor.closureBorderView.toFront();
 	}//GEN-LAST:event_closureBorderToolMenuItemActionPerformed
 
-	private void restrictedDependenciesToolMenuItemActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_restrictedDependenciesToolMenuItemActionPerformed
-		restrictedDependenciesView.setVisible(true);
-		restrictedDependenciesView.toFront();
-	}//GEN-LAST:event_restrictedDependenciesToolMenuItemActionPerformed
-
     private void reloadActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_reloadActionPerformed
     	try {
     		if (extractionModelEditor.extractionModelFile == null) {
@@ -1665,6 +1726,15 @@ public class ExtractionModelFrame extends javax.swing.JFrame {
         });
     }//GEN-LAST:event_columnOrderItemActionPerformed
 
+    private void downloadButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_downloadButtonActionPerformed
+        updateInfoPanel.setVisible(false);
+        UpdateInfoManager.download();
+    }//GEN-LAST:event_downloadButtonActionPerformed
+
+    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed
+        updateInfoPanel.setVisible(false);
+    }//GEN-LAST:event_jButton1ActionPerformed
+
     private void executeAndReload(Callable<Boolean> callable) {
         File tmpFile = null;
         String extractionModelFile = extractionModelEditor.extractionModelFile;
@@ -1730,12 +1800,7 @@ public class ExtractionModelFrame extends javax.swing.JFrame {
 	 * Changes some nimbus LAF defaults.
 	 */
 	public static void customizeNimbus() {
-		try {
-            ToolTipManager.sharedInstance().setInitialDelay(500);
-            ToolTipManager.sharedInstance().setDismissDelay(7000);
-		} catch (Exception x) {
-			x.printStackTrace();
-		}
+		// nothing to do yet
 	}
 
 	/**
@@ -1797,6 +1862,12 @@ public class ExtractionModelFrame extends javax.swing.JFrame {
                     if (new Integer(10).equals(dSize)) {
                     	UIManager.put("SplitPane.dividerSize", new Integer(14));
                     }
+
+                    if (UIManager.get("InternalFrame:InternalFrameTitlePane[Enabled].textForeground") instanceof Color) {
+                    	UIManager.put("InternalFrame:InternalFrameTitlePane[Enabled].textForeground", Color.BLUE);
+                    }
+
+                    UIUtil.prepareUI();
                 } catch (Exception x) {
 				}
 				
@@ -1808,7 +1879,7 @@ public class ExtractionModelFrame extends javax.swing.JFrame {
 							file = commandLine.arguments.get(0);
 						}	
 					}
-					createFrame(file, true);
+					createFrame(file, true, null);
 				} catch (Throwable e) {
 					UIUtil.showException(null, "Error", e);
 				}
@@ -1865,11 +1936,15 @@ public class ExtractionModelFrame extends javax.swing.JFrame {
 		return extractionModelFrame;
 	}
 	
-	public static void createFrame(String file, final boolean withStartupWizzard) {
+	public static void createFrame(String file, final boolean withStartupWizzard, ExecutionContext executionContext) {
 		try {
 			final String finalFile = file;
 			if (file != null && new File(file).exists()) {
-				ExecutionContext executionContext = new ExecutionContext(CommandLineInstance.getInstance());
+				if (executionContext == null) {
+					executionContext = new ExecutionContext(CommandLineInstance.getInstance());
+				} else {
+					executionContext = new ExecutionContext(executionContext);
+				}
 				DataModelManager.setCurrentModelSubfolder(ExtractionModel.loadDatamodelFolder(file, executionContext), executionContext);
 				createFrame(finalFile, true, true, null, executionContext);
 			} else {
@@ -1951,6 +2026,7 @@ public class ExtractionModelFrame extends javax.swing.JFrame {
     private javax.swing.JMenuItem dataExport;
     private javax.swing.JMenuItem dataImport;
     private javax.swing.JMenuItem disconnectDb;
+    private javax.swing.JButton downloadButton;
     private javax.swing.JMenu editMenu;
     private javax.swing.JPanel editorPanel;
     private javax.swing.JMenuItem exit;
@@ -1962,6 +2038,8 @@ public class ExtractionModelFrame extends javax.swing.JFrame {
     private javax.swing.JMenuItem helpForum;
     private javax.swing.JCheckBoxMenuItem horizontalLayoutMenuItem;
     private javax.swing.JMenuItem ignoreAll;
+    private javax.swing.JButton jButton1;
+    private javax.swing.JLayeredPane jLayeredPane1;
     private javax.swing.JMenu jMenu1;
     private javax.swing.JMenu jMenu2;
     private javax.swing.JMenu jMenu3;
@@ -1991,7 +2069,6 @@ public class ExtractionModelFrame extends javax.swing.JFrame {
     public javax.swing.JMenuItem reload;
     private javax.swing.JMenuItem removeAllRestrictions;
     private javax.swing.JMenuItem renderHtml;
-    private javax.swing.JMenuItem restrictedDependenciesToolMenuItem;
     private javax.swing.JMenuItem save;
     private javax.swing.JMenuItem saveAs;
     private javax.swing.JCheckBoxMenuItem showIgnored;
@@ -2008,6 +2085,8 @@ public class ExtractionModelFrame extends javax.swing.JFrame {
     private javax.swing.ButtonGroup steptimeGroup;
     private javax.swing.JMenuItem tutorial;
     private javax.swing.JMenuItem updateDataModel;
+    private javax.swing.JLabel updateInfoLabel;
+    private javax.swing.JPanel updateInfoPanel;
     private javax.swing.JMenu view;
     private javax.swing.JMenu viewMenu;
     private javax.swing.JMenuItem zoomToFit;
@@ -2015,4 +2094,4 @@ public class ExtractionModelFrame extends javax.swing.JFrame {
 
 	private static final long serialVersionUID = -2252377308370736756L;
 
-}
+}

src/main/gui/net/sf/jailer/ui/ListEditor.java

@@ -121,7 +121,7 @@ public abstract class ListEditor<T> extends javax.swing.JPanel {
 			deleteButton.setVisible(false);
 		}
 		final Color BG1 = new Color(255, 255, 255);
-		final Color BG2 = new Color(230, 255, 255);
+		final Color BG2 = new Color(242, 255, 242);
 		final Color BGSEL = new Color(0, 200, 255);
 		TableCellRenderer renderer = new DefaultTableCellRenderer() {
 			@Override

src/main/gui/net/sf/jailer/ui/NeighborhoodPanel.java

@@ -108,8 +108,10 @@ public class NeighborhoodPanel extends javax.swing.JPanel {
 		length = graphView.getHeight() / (getFontMetrics(font).getHeight() + 2) - 12;
 		if (length < 2) {
 			length = 2;
+		} else if (length > 20) { 
+			length = 20;
 		}
-		
+
 		initTableList(dataModel, table, hideIgnored, graphView);
 		createTableLinks(dataModel, table, graphView, hideIgnored);
 		
@@ -161,7 +163,7 @@ public class NeighborhoodPanel extends javax.swing.JPanel {
 					@Override
 					protected void onRightClick(MouseEvent e) {
 						if (t != null) {
-							JPopupMenu popup = graphView.createPopupMenu(t, true);
+							JPopupMenu popup = graphView.createPopupMenu(t, null, true);
 							popup.show(e.getComponent(), e.getX(), e.getY());
 							popup.addPopupMenuListener(new PopupMenuListener() {
 								@Override

src/main/gui/net/sf/jailer/ui/ParameterSelector.java

@@ -64,7 +64,7 @@ public class ParameterSelector extends javax.swing.JPanel {
 										isSelected, hasFocus, row, column);
 						if (render instanceof JLabel && !isSelected) {
 							final Color BG1 = new Color(255, 255, 255);
-							final Color BG2 = new Color(230, 255, 255);
+							final Color BG2 = new Color(242, 255, 242);
 							((JLabel) render)
 									.setBackground((row % 2 == 0) ? BG1
 											: BG2);

src/main/gui/net/sf/jailer/ui/PrivilegedSessionProviderDialog.form

@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+
+<Form version="1.3" maxVersion="1.9" type="org.netbeans.modules.form.forminfo.JDialogFormInfo">
+  <Properties>
+    <Property name="defaultCloseOperation" type="int" value="2"/>
+  </Properties>
+  <SyntheticProperties>
+    <SyntheticProperty name="formSizePolicy" type="int" value="1"/>
+    <SyntheticProperty name="generateCenter" type="boolean" value="false"/>
+  </SyntheticProperties>
+  <AuxValues>
+    <AuxValue name="FormSettings_autoResourcing" type="java.lang.Integer" value="0"/>
+    <AuxValue name="FormSettings_autoSetComponentName" type="java.lang.Boolean" value="false"/>
+    <AuxValue name="FormSettings_generateFQN" type="java.lang.Boolean" value="true"/>
+    <AuxValue name="FormSettings_generateMnemonicsCode" type="java.lang.Boolean" value="false"/>
+    <AuxValue name="FormSettings_i18nAutoMode" type="java.lang.Boolean" value="false"/>
+    <AuxValue name="FormSettings_layoutCodeTarget" type="java.lang.Integer" value="1"/>
+    <AuxValue name="FormSettings_listenerGenerationStyle" type="java.lang.Integer" value="0"/>
+    <AuxValue name="FormSettings_variablesLocal" type="java.lang.Boolean" value="false"/>
+    <AuxValue name="FormSettings_variablesModifier" type="java.lang.Integer" value="2"/>
+  </AuxValues>
+
+  <Layout class="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout"/>
+  <SubComponents>
+    <Container class="javax.swing.JPanel" name="jPanel1">
+      <Constraints>
+        <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+          <GridBagConstraints gridX="0" gridY="0" gridWidth="1" gridHeight="1" fill="1" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="18" weightX="1.0" weightY="1.0"/>
+        </Constraint>
+      </Constraints>
+
+      <Layout class="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout"/>
+      <SubComponents>
+        <Container class="javax.swing.JPanel" name="detailsContainerPanel">
+          <Constraints>
+            <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+              <GridBagConstraints gridX="1" gridY="1" gridWidth="1" gridHeight="1" fill="1" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="10" weightX="1.0" weightY="1.0"/>
+            </Constraint>
+          </Constraints>
+
+          <Layout class="org.netbeans.modules.form.compat2.layouts.DesignBorderLayout"/>
+        </Container>
+      </SubComponents>
+    </Container>
+  </SubComponents>
+</Form>

src/main/gui/net/sf/jailer/ui/PrivilegedSessionProviderDialog.java

@@ -0,0 +1,189 @@
+/*
+ * Copyright 2007 - 2018 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package net.sf.jailer.ui;
+
+import java.awt.Frame;
+import java.lang.reflect.InvocationTargetException;
+import java.util.HashSet;
+import java.util.Set;
+import java.util.concurrent.atomic.AtomicReference;
+
+import javax.swing.SwingUtilities;
+
+import net.sf.jailer.ExecutionContext;
+import net.sf.jailer.JailerVersion;
+import net.sf.jailer.database.BasicDataSource;
+import net.sf.jailer.database.Session;
+import net.sf.jailer.datamodel.Table;
+import net.sf.jailer.modelbuilder.JDBCMetaDataBasedModelElementFinder;
+import net.sf.jailer.ui.DbConnectionDialog.ConnectionInfo;
+import net.sf.jailer.util.ClasspathUtil;
+
+/**
+ * Asks for an alternative connection if the database analyzers connection has
+ * insufficient privileges to analyze a certain schema.
+ *
+ * @author Ralf Wisser
+ */
+public class PrivilegedSessionProviderDialog extends javax.swing.JDialog {
+
+	public static class Provider implements JDBCMetaDataBasedModelElementFinder.PrivilegedSessionProvider {
+		private final Frame parent;
+		private Set<String> tabu = new HashSet<String>();
+		
+		public Provider(Frame parent) {
+			synchronized(this) {
+				this.parent = parent;
+			}
+		}
+
+		@Override
+		public Session askForSessionWithPermissionToReadSchema(final Session session, final Table view, final String schema, final String tableName,
+				final ExecutionContext executionContext) {
+			final Frame theParent;
+			synchronized(this) {
+				theParent = parent;
+			}
+			if (tabu.contains(schema)) {
+				return null;
+			}
+			final AtomicReference<Session> newSession = new AtomicReference<>();
+			try {
+				SwingUtilities.invokeAndWait(new Runnable() {
+					@Override
+					public void run() {
+						InfoBar infoBar = new InfoBar("Insufficient Privileges",
+								"Need to analyze schema \"" + schema + "\" because\n" +
+								"view \"" + view.getName() + "\" is based on table \"" + schema + "." + tableName +"\".\n" +
+								"but that's not possible with the current connection.\n ",
+								"Please choose an alternative connection with the required privileges."
+								);
+						final PrivilegedSessionProviderDialog dialog = new PrivilegedSessionProviderDialog(theParent);
+						ConnectionInfo ci = new ConnectionInfo();
+						final DbConnectionDialog connectionDialog = new DbConnectionDialog(theParent, JailerVersion.APPLICATION_NAME, infoBar, executionContext, true) {
+							@Override
+							protected boolean isAssignedToDataModel(String dataModelFolder) {
+								return true;
+							}
+						};
+						final DbConnectionDetailsEditor detailsEditor = new DbConnectionDetailsEditor(theParent, DbConnectionDialog.jdbcHelpURL, false, infoBar, true) {
+							@Override
+							protected void onClose(boolean ok, ConnectionInfo info) {
+								dialog.setVisible(false);
+								if (ok) {	
+									try {
+										BasicDataSource dataSource = new BasicDataSource(info.driverClass,
+												info.url, info.user,
+												info.password, 0, ClasspathUtil.toURLArray(info.jar1, info.jar2, info.jar3, info.jar4));
+										newSession.set(new Session(dataSource, dataSource.dbms));
+									} catch (Exception e) {
+										UIUtil.showException(theParent, "Error", e);
+									}
+								}
+							}
+							@Override
+							protected void onSelect() {
+								if (connectionDialog.connect("Analyze Database")) {
+									try {
+										setDetails((ConnectionInfo) connectionDialog.currentConnection.clone());
+									} catch (CloneNotSupportedException e) {
+										setDetails(connectionDialog.currentConnection);
+									}
+								}
+							}
+						};
+						ci.alias = "(temporary)";
+						ci.driverClass = session.driverClassName;
+						ci.url = session.dbUrl;
+						ci.user = schema;
+						detailsEditor.setDetails(ci);
+						dialog.detailsContainerPanel.add(detailsEditor.getContentPane());
+						detailsEditor.password.grabFocus();
+						dialog.setLocation(100, 150);
+						dialog.pack();
+						dialog.setSize(Math.max(500, dialog.getWidth()), dialog.getHeight());
+						UIUtil.initPeer();
+						dialog.setVisible(true);
+					}
+				});
+				
+				Session result = newSession.get();
+				if (result == null) {
+					tabu.add(schema);
+				}
+				return result;
+			} catch (InvocationTargetException e) {
+				throw new RuntimeException(e);
+			} catch (InterruptedException e) {
+				// ignore
+			}
+			
+			return null;
+		}
+	}
+
+    /**
+     * Creates new form PrivilegedSessionProvider
+     */
+    public PrivilegedSessionProviderDialog(Frame parent) {
+        super(parent, true);
+        initComponents();
+    }
+
+    /**
+     * This method is called from within the constructor to initialize the form.
+     * WARNING: Do NOT modify this code. The content of this method is always
+     * regenerated by the Form Editor.
+     */
+    @SuppressWarnings("unchecked")
+    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
+    private void initComponents() {
+        java.awt.GridBagConstraints gridBagConstraints;
+
+        jPanel1 = new javax.swing.JPanel();
+        detailsContainerPanel = new javax.swing.JPanel();
+
+        setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
+        getContentPane().setLayout(new java.awt.GridBagLayout());
+
+        jPanel1.setLayout(new java.awt.GridBagLayout());
+
+        detailsContainerPanel.setLayout(new java.awt.BorderLayout());
+        gridBagConstraints = new java.awt.GridBagConstraints();
+        gridBagConstraints.gridx = 1;
+        gridBagConstraints.gridy = 1;
+        gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
+        gridBagConstraints.weightx = 1.0;
+        gridBagConstraints.weighty = 1.0;
+        jPanel1.add(detailsContainerPanel, gridBagConstraints);
+
+        gridBagConstraints = new java.awt.GridBagConstraints();
+        gridBagConstraints.gridx = 0;
+        gridBagConstraints.gridy = 0;
+        gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
+        gridBagConstraints.anchor = java.awt.GridBagConstraints.NORTHWEST;
+        gridBagConstraints.weightx = 1.0;
+        gridBagConstraints.weighty = 1.0;
+        getContentPane().add(jPanel1, gridBagConstraints);
+
+        pack();
+    }// </editor-fold>//GEN-END:initComponents
+
+    // Variables declaration - do not modify//GEN-BEGIN:variables
+    private javax.swing.JPanel detailsContainerPanel;
+    private javax.swing.JPanel jPanel1;
+    // End of variables declaration//GEN-END:variables
+}

src/main/gui/net/sf/jailer/ui/RestrictionEditor.form

@@ -198,6 +198,19 @@
                 </Component>
               </SubComponents>
             </Container>
+            <Component class="javax.swing.JCheckBox" name="fkToNullCheckBox">
+              <Properties>
+                <Property name="text" type="java.lang.String" value="Set foreign key columns to null"/>
+              </Properties>
+              <AuxValues>
+                <AuxValue name="JavaCodeGenerator_VariableModifier" type="java.lang.Integer" value="1"/>
+              </AuxValues>
+              <Constraints>
+                <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+                  <GridBagConstraints gridX="1" gridY="10" gridWidth="6" gridHeight="1" fill="2" ipadX="0" ipadY="0" insetsTop="2" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="10" weightX="0.0" weightY="0.0"/>
+                </Constraint>
+              </Constraints>
+            </Component>
           </SubComponents>
         </Container>
         <Container class="javax.swing.JPanel" name="jPanel4">

src/main/gui/net/sf/jailer/ui/RestrictionEditor.java

@@ -72,6 +72,7 @@ public class RestrictionEditor extends javax.swing.JPanel {
         jPanel9 = new javax.swing.JPanel();
         restriction = new javax.swing.JTextField();
         apply = new javax.swing.JButton();
+        fkToNullCheckBox = new javax.swing.JCheckBox();
         jPanel4 = new javax.swing.JPanel();
         columnsA = new javax.swing.JLabel();
         source = new javax.swing.JLabel();
@@ -168,6 +169,15 @@ public class RestrictionEditor extends javax.swing.JPanel {
         gridBagConstraints.anchor = java.awt.GridBagConstraints.NORTH;
         jPanel7.add(jPanel9, gridBagConstraints);
 
+        fkToNullCheckBox.setText("Set foreign key columns to null");
+        gridBagConstraints = new java.awt.GridBagConstraints();
+        gridBagConstraints.gridx = 1;
+        gridBagConstraints.gridy = 10;
+        gridBagConstraints.gridwidth = 6;
+        gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
+        gridBagConstraints.insets = new java.awt.Insets(2, 0, 0, 0);
+        jPanel7.add(fkToNullCheckBox, gridBagConstraints);
+
         gridBagConstraints = new java.awt.GridBagConstraints();
         gridBagConstraints.gridx = 2;
         gridBagConstraints.gridy = 3;
@@ -257,6 +267,7 @@ public class RestrictionEditor extends javax.swing.JPanel {
     javax.swing.JLabel columnsA;
     javax.swing.JLabel columnsB;
     public javax.swing.JLabel destination;
+    public javax.swing.JCheckBox fkToNullCheckBox;
     public javax.swing.JRadioButton ignore;
     private javax.swing.JLabel jLabel1;
     private javax.swing.JLabel jLabel4;

src/main/gui/net/sf/jailer/ui/StringSearchPanel.form

@@ -40,7 +40,7 @@
     <AuxValue name="FormSettings_listenerGenerationStyle" type="java.lang.Integer" value="0"/>
     <AuxValue name="FormSettings_variablesLocal" type="java.lang.Boolean" value="false"/>
     <AuxValue name="FormSettings_variablesModifier" type="java.lang.Integer" value="2"/>
-    <AuxValue name="designerSize" type="java.awt.Dimension" value="-84,-19,0,5,115,114,0,18,106,97,118,97,46,97,119,116,46,68,105,109,101,110,115,105,111,110,65,-114,-39,-41,-84,95,68,20,2,0,2,73,0,6,104,101,105,103,104,116,73,0,5,119,105,100,116,104,120,112,0,0,1,44,0,0,1,-112"/>
+    <AuxValue name="designerSize" type="java.awt.Dimension" value="-84,-19,0,5,115,114,0,18,106,97,118,97,46,97,119,116,46,68,105,109,101,110,115,105,111,110,65,-114,-39,-41,-84,95,68,20,2,0,2,73,0,6,104,101,105,103,104,116,73,0,5,119,105,100,116,104,120,112,0,0,1,85,0,0,1,-63"/>
   </AuxValues>
 
   <Layout class="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout"/>
@@ -200,5 +200,14 @@
         </Component>
       </SubComponents>
     </Container>
+    <Container class="javax.swing.JPanel" name="plugInPanel">
+      <Constraints>
+        <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+          <GridBagConstraints gridX="10" gridY="1" gridWidth="1" gridHeight="3" fill="1" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="10" weightX="0.0" weightY="0.0"/>
+        </Constraint>
+      </Constraints>
+
+      <Layout class="org.netbeans.modules.form.compat2.layouts.DesignBorderLayout"/>
+    </Container>
   </SubComponents>
 </Form>

src/main/gui/net/sf/jailer/ui/StringSearchPanel.java

@@ -17,7 +17,6 @@ package net.sf.jailer.ui;
 
 import java.awt.Color;
 import java.awt.Component;
-import java.awt.Cursor;
 import java.awt.Frame;
 import java.awt.GridBagConstraints;
 import java.awt.GridLayout;
@@ -30,6 +29,8 @@ import java.awt.event.KeyEvent;
 import java.awt.event.KeyListener;
 import java.awt.event.MouseEvent;
 import java.awt.event.MouseListener;
+import java.beans.PropertyChangeEvent;
+import java.beans.PropertyChangeListener;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Comparator;
@@ -48,6 +49,8 @@ import javax.swing.DefaultListModel;
 import javax.swing.ImageIcon;
 import javax.swing.JButton;
 import javax.swing.JCheckBox;
+import javax.swing.JComboBox;
+import javax.swing.JComponent;
 import javax.swing.JDialog;
 import javax.swing.JList;
 import javax.swing.JPanel;
@@ -56,6 +59,8 @@ import javax.swing.SwingConstants;
 import javax.swing.SwingUtilities;
 import javax.swing.event.DocumentEvent;
 import javax.swing.event.DocumentListener;
+import javax.swing.event.ListDataEvent;
+import javax.swing.event.ListDataListener;
 import javax.swing.event.ListSelectionEvent;
 import javax.swing.event.ListSelectionListener;
 
@@ -80,29 +85,46 @@ public class StringSearchPanel extends javax.swing.JPanel {
 	public interface Prepare {
 		void prepare(Set<MDSchema> selectedSchemas);
 	}
-	
-	public static JButton createSearchButton(final Frame owner, final javax.swing.JComboBox comboBox, final String titel, final Runnable onSuccess) {
-		return createSearchButton(owner, comboBox, titel, onSuccess, null);
+
+	public interface AdditionalComponentFactory {
+		JComponent create(StringSearchPanel searchPanel);
+	}
+
+	public static JButton createSearchButton(final Frame owner, final javax.swing.JComboBox comboBox, final Object titel, final Runnable onSuccess) {
+		return createSearchButton(owner, comboBox, titel, onSuccess, false);
+	}
+
+	public static JButton createSearchButton(final Frame owner, final javax.swing.JComboBox comboBox, final Object titel, final Runnable onSuccess, boolean alternativeIcon) {
+		return createSearchButton(owner, comboBox, titel, onSuccess, null, alternativeIcon);
 	}
 	
-	public static JButton createSearchButton(final Frame owner, final javax.swing.JComboBox comboBox, final String titel, final Runnable onSuccess, final Prepare prepare) {
-		return createSearchButton(owner, comboBox, titel, onSuccess, null, null, null);
+	public static JButton createSearchButton(final Frame owner, final javax.swing.JComboBox comboBox, final Object titel, final Runnable onSuccess, final Prepare prepare, boolean alternativeIcon) {
+		return createSearchButton(owner, comboBox, titel, onSuccess, null, null, null, alternativeIcon, null);
 	}
 	
-	public static JButton createSearchButton(final Frame owner, final javax.swing.JComboBox comboBox, final String titel, final Runnable onSuccess, final Prepare prepare, final MetaDataSource metaDataSource, final DataModel dataModel) {
+	public static JButton createSearchButton(final Frame owner, final javax.swing.JComboBox comboBox, final Object titel, final Runnable onSuccess, final Prepare prepare, final MetaDataSource metaDataSource, final DataModel dataModel) {
+		return createSearchButton(owner, comboBox, titel, onSuccess, prepare, metaDataSource, dataModel, false, null);
+	}
+
+	public static JButton createSearchButton(final Frame owner, final javax.swing.JComboBox comboBox, final Object titel, final Runnable onSuccess, final Prepare prepare, final MetaDataSource metaDataSource, final DataModel dataModel, boolean alternativeIcon, final AdditionalComponentFactory additionalComponentFactory) {
 		final JButton button = new JButton();
-		button.setIcon(UIUtil.scaleIcon(button, icon));
+		button.setIcon(UIUtil.scaleIcon(button, alternativeIcon? icon2 : icon));
 		button.setToolTipText("Find Table");
 		button.addActionListener(new ActionListener() {
 			@Override
 			public void actionPerformed(ActionEvent e) {
-				button.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
+				UIUtil.setWaitCursor(button);
 				SwingUtilities.invokeLater(new Runnable() {
 					@Override
 					public void run() {
 				        try {
 							Point location = button.getLocationOnScreen();
 							StringSearchPanel searchPanel = new StringSearchPanel(comboBox, metaDataSource, dataModel, prepare);
+							if (additionalComponentFactory != null) {
+								searchPanel.plugInPanel.add(additionalComponentFactory.create(searchPanel), java.awt.BorderLayout.CENTER);
+							} else {
+								searchPanel.plugInPanel.setVisible(false);
+							}
 							String result = searchPanel.find(owner, titel, location.x, location.y);
 							if (result != null && !result.equals(searchPanel.showAllLabel)) {
 								comboBox.setSelectedItem(result);
@@ -111,17 +133,44 @@ public class StringSearchPanel extends javax.swing.JPanel {
 								}
 							}
 				        } finally {
-				        	button.setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
+				        	UIUtil.resetWaitCursor(button);
 				        }
 					}
 				});
 			}
 		});
+		if (prepare == null) {
+			updateEnabledState(button, comboBox);
+			comboBox.getModel().addListDataListener(new ListDataListener() {
+				@Override
+				public void intervalRemoved(ListDataEvent arg0) {
+					updateEnabledState(button, comboBox);
+				}
+				@Override
+				public void intervalAdded(ListDataEvent arg0) {
+					updateEnabledState(button, comboBox);
+				}
+				@Override
+				public void contentsChanged(ListDataEvent arg0) {
+					updateEnabledState(button, comboBox);
+				}
+			});
+			comboBox.addPropertyChangeListener("model", new PropertyChangeListener() {
+				@Override
+				public void propertyChange(PropertyChangeEvent arg0) {
+					updateEnabledState(button, comboBox);
+				}
+			});
+		}
 		return button;
 	}
-	
-	public String find(Frame owner, String titel, int x, int y) {
-		dialog = new EscapableDialog(owner, titel, true) {
+
+	private static void updateEnabledState(JButton button, JComboBox comboBox) {
+		button.setEnabled(comboBox.getModel().getSize() > 1 || comboBox.getModel().getSize() == 1 && !"".equals(comboBox.getModel().getElementAt(0)));
+	}
+
+	public String find(Frame owner, Object titel, int x, int y) {
+		dialog = new EscapableDialog(owner, String.valueOf(titel), true) {
 		};
 		dialog.getContentPane().add(this);
 		dialog.pack();
@@ -214,12 +263,12 @@ public class StringSearchPanel extends javax.swing.JPanel {
 			@Override
 			public void keyTyped(KeyEvent e) {
 				if (e.getKeyChar() == KeyEvent.VK_ESCAPE) {
-					dialog.setVisible(false);
+					close();
 				} else if (e.getKeyChar() == KeyEvent.VK_DOWN) {
 					searchList.grabFocus();
 				} else if (e.getKeyChar() == '\n') {
 					result  = searchList.getSelectedValue();
-					dialog.setVisible(false);
+					close();
 				}
 			}
 			@Override
@@ -276,9 +325,9 @@ public class StringSearchPanel extends javax.swing.JPanel {
 			}
 			@Override
 			public void mouseClicked(MouseEvent e) {
-				if (e.getClickCount() >1) {
+				if (e.getClickCount() > 1) {
 					result  = searchList.getSelectedValue();
-					dialog.setVisible(false);
+					close();
 				}
 			}
 		});
@@ -500,6 +549,7 @@ public class StringSearchPanel extends javax.swing.JPanel {
         jPanel1 = new javax.swing.JPanel();
         okButton = new javax.swing.JButton();
         cancelButton = new javax.swing.JButton();
+        plugInPanel = new javax.swing.JPanel();
 
         loadingPanel.setBackground(java.awt.Color.white);
 
@@ -509,8 +559,7 @@ public class StringSearchPanel extends javax.swing.JPanel {
 
         cancelLoadiingButton.setText("Cancel");
         cancelLoadiingButton.addActionListener(new java.awt.event.ActionListener() {
-            @Override
-			public void actionPerformed(java.awt.event.ActionEvent evt) {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
                 cancelLoadiingButtonActionPerformed(evt);
             }
         });
@@ -529,10 +578,8 @@ public class StringSearchPanel extends javax.swing.JPanel {
 
         searchList.setModel(new javax.swing.AbstractListModel<String>() {
             String[] strings = { "Item 1", "Item 2", "Item 3", "Item 4", "Item 5" };
-            @Override
-			public int getSize() { return strings.length; }
-            @Override
-			public String getElementAt(int i) { return strings[i]; }
+            public int getSize() { return strings.length; }
+            public String getElementAt(int i) { return strings[i]; }
         });
         jScrollPane1.setViewportView(searchList);
 
@@ -576,8 +623,7 @@ public class StringSearchPanel extends javax.swing.JPanel {
 
         selectAllButton.setText("Select all");
         selectAllButton.addActionListener(new java.awt.event.ActionListener() {
-            @Override
-			public void actionPerformed(java.awt.event.ActionEvent evt) {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
                 selectAllButtonActionPerformed(evt);
             }
         });
@@ -608,8 +654,7 @@ public class StringSearchPanel extends javax.swing.JPanel {
 
         okButton.setText(" Ok ");
         okButton.addActionListener(new java.awt.event.ActionListener() {
-            @Override
-			public void actionPerformed(java.awt.event.ActionEvent evt) {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
                 okButtonActionPerformed(evt);
             }
         });
@@ -622,8 +667,7 @@ public class StringSearchPanel extends javax.swing.JPanel {
 
         cancelButton.setText("Cancel");
         cancelButton.addActionListener(new java.awt.event.ActionListener() {
-            @Override
-			public void actionPerformed(java.awt.event.ActionEvent evt) {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
                 cancelButtonActionPerformed(evt);
             }
         });
@@ -638,17 +682,29 @@ public class StringSearchPanel extends javax.swing.JPanel {
         gridBagConstraints.gridwidth = 3;
         gridBagConstraints.anchor = java.awt.GridBagConstraints.EAST;
         add(jPanel1, gridBagConstraints);
+
+        plugInPanel.setLayout(new java.awt.BorderLayout());
+        gridBagConstraints = new java.awt.GridBagConstraints();
+        gridBagConstraints.gridx = 10;
+        gridBagConstraints.gridy = 1;
+        gridBagConstraints.gridheight = 3;
+        gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
+        add(plugInPanel, gridBagConstraints);
     }// </editor-fold>//GEN-END:initComponents
 
     private void okButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_okButtonActionPerformed
     	result  = searchList.getSelectedValue();
-		dialog.setVisible(false);
+		close();
     }//GEN-LAST:event_okButtonActionPerformed
 
     private void cancelButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_cancelButtonActionPerformed
-    	dialog.setVisible(false);
+    	close();
 	}//GEN-LAST:event_cancelButtonActionPerformed
 
+	public void close() {
+		dialog.setVisible(false);
+	}
+
     private void cancelLoadiingButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_cancelLoadiingButtonActionPerformed
         cancelLoading.set(true);
     }//GEN-LAST:event_cancelLoadiingButtonActionPerformed
@@ -670,6 +726,7 @@ public class StringSearchPanel extends javax.swing.JPanel {
     private javax.swing.JScrollPane jScrollPane2;
     private javax.swing.JPanel loadingPanel;
     private javax.swing.JButton okButton;
+    private javax.swing.JPanel plugInPanel;
     private javax.swing.JPanel schemaPanel;
     private javax.swing.JList<String> searchList;
     private javax.swing.JTextField searchTextField;
@@ -678,12 +735,14 @@ public class StringSearchPanel extends javax.swing.JPanel {
     // End of variables declaration//GEN-END:variables
     
     static private ImageIcon icon;
+    static private ImageIcon icon2;
     static {
 		String dir = "/net/sf/jailer/ui/resource";
 		
 		// load images
 		try {
 			icon = new ImageIcon(MetaDataPanel.class.getResource(dir + "/search.png"));
+			icon2 = new ImageIcon(MetaDataPanel.class.getResource(dir + "/search2.png"));
 		} catch (Exception e) {
 			e.printStackTrace();
 		}

src/main/gui/net/sf/jailer/ui/UIUtil.java

@@ -17,6 +17,7 @@ package net.sf.jailer.ui;
 
 import java.awt.Component;
 import java.awt.Container;
+import java.awt.Cursor;
 import java.awt.Dialog;
 import java.awt.Dimension;
 import java.awt.FileDialog;
@@ -34,6 +35,8 @@ import java.awt.event.MouseAdapter;
 import java.awt.event.MouseEvent;
 import java.awt.event.WindowAdapter;
 import java.awt.event.WindowEvent;
+import java.beans.PropertyChangeEvent;
+import java.beans.PropertyChangeListener;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileOutputStream;
@@ -49,6 +52,7 @@ import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.WeakHashMap;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
@@ -80,6 +84,7 @@ import net.sf.jailer.ui.databrowser.BrowserContentPane.TableModelItem;
 import net.sf.jailer.ui.databrowser.Row;
 import net.sf.jailer.ui.scrollmenu.JScrollC2PopupMenu;
 import net.sf.jailer.ui.scrollmenu.JScrollPopupMenu;
+import net.sf.jailer.ui.syntaxtextarea.RSyntaxTextAreaWithSQLSyntaxStyle;
 import net.sf.jailer.util.CancellationException;
 import net.sf.jailer.util.CancellationHandler;
 import net.sf.jailer.util.CycleFinder;
@@ -947,7 +952,7 @@ public class UIUtil {
 	/**
 	 * Pair of Icon and Text.
 	 */
-	public static class IconWithText {
+	public static class IconWithText implements Comparable<IconWithText> {
 		public final String text;
 		public final ImageIcon icon;
 
@@ -960,6 +965,88 @@ public class UIUtil {
 		public String toString() {
 			return text;
 		}
+
+		@Override
+		public int compareTo(IconWithText o) {
+			return text.compareTo(o.text);
+		}
+	}
+
+	private static boolean isPopupActive = false;
+	
+	public static synchronized boolean isPopupActive() {
+		return isPopupActive;
+	}
+
+	private static synchronized void setPopupActive(boolean b) {
+		isPopupActive = b;
 	}
 	
+    public static void showPopup(final Component invoker, final int x, final int y, final JPopupMenu popup) {
+    	popup.addPropertyChangeListener("visible", new PropertyChangeListener() {
+    		@Override
+			public void propertyChange(PropertyChangeEvent evt) {
+    			if (Boolean.FALSE.equals(evt.getNewValue())) {
+    				setPopupActive(false);
+    			}
+    		}
+		});
+    	SwingUtilities.invokeLater(new Runnable() {
+			@Override
+			public void run() {
+				setPopupActive(true);
+				popup.show(invoker, x, y);
+			}
+		});
+	}
+
+    public static void invokeLater(final int ticks, final Runnable runnable) {
+		SwingUtilities.invokeLater(new Runnable() {
+			int count = ticks;
+			@Override
+			public void run() {
+				if (--count <= 0) {
+					runnable.run();
+				} else {
+					SwingUtilities.invokeLater(this);			
+				}
+			}
+		});
+	}
+
+    private static Map<Component, Integer> waitLevel = new WeakHashMap<Component, Integer>();
+    
+	public static void setWaitCursor(Component component) {
+		if (component != null) {
+			Integer level = waitLevel.get(component);
+			if (level != null) {
+				waitLevel.put(component, level + 1);
+			} else {
+				waitLevel.put(component, 1);
+				component.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));	
+			}
+		}
+	}
+
+	public static void resetWaitCursor(Component component) {
+		if (component != null) {
+			Integer level = waitLevel.get(component);
+			if (level != null) {
+				if (level == 1) {
+					component.setCursor(null);
+					waitLevel.remove(component);
+				} else {
+					waitLevel.put(component, level - 1);
+				}
+			}
+		}
+	}
+
+	/**
+	 * Triggers UI initializations.
+	 */
+	public static void prepareUI() {
+		new RSyntaxTextAreaWithSQLSyntaxStyle(false, false);	
+	}
+
 }

src/main/gui/net/sf/jailer/ui/associationproposer/AssociationProposer.java

@@ -54,6 +54,7 @@ import net.sf.jsqlparser.statement.Commit;
 import net.sf.jsqlparser.statement.SetStatement;
 import net.sf.jsqlparser.statement.StatementVisitor;
 import net.sf.jsqlparser.statement.Statements;
+import net.sf.jsqlparser.statement.UseStatement;
 import net.sf.jsqlparser.statement.alter.Alter;
 import net.sf.jsqlparser.statement.create.index.CreateIndex;
 import net.sf.jsqlparser.statement.create.table.CreateTable;
@@ -70,6 +71,7 @@ import net.sf.jsqlparser.statement.select.AllTableColumns;
 import net.sf.jsqlparser.statement.select.FromItemVisitor;
 import net.sf.jsqlparser.statement.select.Join;
 import net.sf.jsqlparser.statement.select.LateralSubSelect;
+import net.sf.jsqlparser.statement.select.ParenthesisFromItem;
 import net.sf.jsqlparser.statement.select.PlainSelect;
 import net.sf.jsqlparser.statement.select.Select;
 import net.sf.jsqlparser.statement.select.SelectBody;
@@ -405,12 +407,16 @@ public class AssociationProposer {
 					if (subjoin.getLeft() != null) {
 						subjoin.getLeft().accept(this);
 					}
-					if (subjoin.getJoin() != null) {
-						if (subjoin.getJoin().getRightItem() != null) {
-							subjoin.getJoin().getRightItem().accept(this);
-						}
-						if (subjoin.getJoin().getOnExpression() != null) {
-							scopes.peek().expressions.add(subjoin.getJoin().getOnExpression());
+					if (subjoin.getJoinList() != null) {
+						for (Join join: subjoin.getJoinList()) {
+							if (join != null) {
+								if (join.getRightItem() != null) {
+									join.getRightItem().accept(this);
+								}
+								if (join.getOnExpression() != null) {
+									scopes.peek().expressions.add(join.getOnExpression());
+								}
+							}
 						}
 					}
 				}
@@ -437,6 +443,13 @@ public class AssociationProposer {
 					fn += Quoting.normalizeIdentifier(tableName.getName());
 					scopes.peek().aliasToTable.put(Quoting.normalizeIdentifier(alias), fn);
 				}
+
+				@Override
+				public void visit(ParenthesisFromItem aThis) {
+					if (aThis.getFromItem() != null) {
+						aThis.getFromItem().accept(this);
+					}
+				}
 			};
 			if (plainSelect.getFromItem() != null) {
 				plainSelect.getFromItem().accept(fromItemVisitor);
@@ -508,6 +521,10 @@ public class AssociationProposer {
 	    public void visit(AnalyticExpression expr) {
 		}
 
+		@Override
+		public void visit(UseStatement use) {
+		}
+
 		private void analyseTopScope() {
 			for (Expression expr: scopes.peek().expressions) {
 				expr.accept(new ExpressionVisitorAdapter() {
@@ -629,7 +646,6 @@ public class AssociationProposer {
 												return dColumn;
 											}
 										}
-										break;
 									}
 								}
 							}

src/main/gui/net/sf/jailer/ui/associationproposer/AssociationProposerView.java

@@ -185,7 +185,7 @@ public class AssociationProposerView extends javax.swing.JPanel {
 		final TableCellRenderer defaultTableCellRenderer = proposalTable.getDefaultRenderer(String.class);
 		TableCellRenderer renderer = new TableCellRenderer() {
 			final Color BG1 = new Color(255, 255, 255);
-			final Color BG2 = new Color(230, 255, 255);
+			final Color BG2 = new Color(242, 255, 242);
 
 			@Override
 			public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
@@ -443,6 +443,8 @@ public class AssociationProposerView extends javax.swing.JPanel {
 					adjustTableColumnsWidth();
 					if (proposalsModel.getRowCount() == 0 && knownModel.getRowCount() == 0 && numErrors > 0) {
 						tabbedPane.setSelectedComponent(problemTabPanel);
+					} else if (proposalsModel.getRowCount() == 0 && knownModel.getRowCount() > 0) {
+						tabbedPane.setSelectedComponent(knownPanel);
 					}
 				}
 				

src/main/gui/net/sf/jailer/ui/constraintcheck/ConstraintChecker.java

@@ -114,7 +114,7 @@ public abstract class ConstraintChecker extends javax.swing.JPanel {
 		final TableCellRenderer defaultTableCellRenderer = problemsTable.getDefaultRenderer(String.class);
 		problemsTable.setDefaultRenderer(Object.class, new TableCellRenderer() {
 			final Color BG1 = new Color(255, 255, 255);
-			final Color BG2 = new Color(230, 255, 255);
+			final Color BG2 = new Color(242, 255, 242);
 
 			@Override
 			public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {

src/main/gui/net/sf/jailer/ui/databrowser/BrowserContentCellEditor.java

@@ -80,7 +80,7 @@ public class BrowserContentCellEditor {
 
 			@Override
 			boolean isEditable(int columnType, Object content) {
-				return content == null || content instanceof String;
+				return content == null || (content instanceof String && !(content.toString().indexOf('\n') >= 0 || content.toString().indexOf('\t') >= 0));
 			}
 		},
 		DATE {

src/main/gui/net/sf/jailer/ui/databrowser/DBClosureView.form

@@ -120,7 +120,7 @@
           </Properties>
           <Constraints>
             <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
-              <GridBagConstraints gridX="3" gridY="20" gridWidth="1" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="13" weightX="1.0" weightY="0.0"/>
+              <GridBagConstraints gridX="7" gridY="20" gridWidth="1" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="13" weightX="1.0" weightY="0.0"/>
             </Constraint>
           </Constraints>
         </Component>
@@ -140,7 +140,7 @@
           </Events>
           <Constraints>
             <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
-              <GridBagConstraints gridX="4" gridY="20" gridWidth="1" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="10" weightX="0.0" weightY="0.0"/>
+              <GridBagConstraints gridX="8" gridY="20" gridWidth="1" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="10" weightX="0.0" weightY="0.0"/>
             </Constraint>
           </Constraints>
         </Component>
@@ -237,6 +237,39 @@
             </Constraint>
           </Constraints>
         </Component>
+        <Component class="javax.swing.JComboBox" name="findPathComboBox">
+          <Properties>
+            <Property name="model" type="javax.swing.ComboBoxModel" editor="org.netbeans.modules.form.editors2.ComboBoxModelEditor">
+              <StringArray count="4">
+                <StringItem index="0" value="Item 1"/>
+                <StringItem index="1" value="Item 2"/>
+                <StringItem index="2" value="Item 3"/>
+                <StringItem index="3" value="Item 4"/>
+              </StringArray>
+            </Property>
+          </Properties>
+          <Events>
+            <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="findPathComboBoxActionPerformed"/>
+          </Events>
+          <Constraints>
+            <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+              <GridBagConstraints gridX="4" gridY="20" gridWidth="1" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="10" weightX="0.0" weightY="0.0"/>
+            </Constraint>
+          </Constraints>
+        </Component>
+        <Component class="javax.swing.JButton" name="findPathButton">
+          <Properties>
+            <Property name="text" type="java.lang.String" value="Find Path to..."/>
+          </Properties>
+          <Events>
+            <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="findPathButtonActionPerformed"/>
+          </Events>
+          <Constraints>
+            <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+              <GridBagConstraints gridX="5" gridY="20" gridWidth="1" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="4" insetsBottom="0" insetsRight="0" anchor="17" weightX="0.0" weightY="0.0"/>
+            </Constraint>
+          </Constraints>
+        </Component>
       </SubComponents>
     </Container>
   </SubComponents>

src/main/gui/net/sf/jailer/ui/databrowser/DBClosureView.java

@@ -53,7 +53,7 @@ import java.util.Vector;
 import javax.swing.BorderFactory;
 import javax.swing.DefaultComboBoxModel;
 import javax.swing.JButton;
-import javax.swing.JCheckBoxMenuItem;
+import javax.swing.JComponent;
 import javax.swing.JFrame;
 import javax.swing.JLabel;
 import javax.swing.JMenuItem;
@@ -70,9 +70,15 @@ import net.sf.jailer.datamodel.Association;
 import net.sf.jailer.datamodel.DataModel;
 import net.sf.jailer.datamodel.Table;
 import net.sf.jailer.ui.AutoCompletion;
+import net.sf.jailer.ui.ClosureView;
+import net.sf.jailer.ui.JComboBox;
 import net.sf.jailer.ui.StringSearchPanel;
 import net.sf.jailer.ui.UIUtil;
+import net.sf.jailer.ui.StringSearchPanel.AdditionalComponentFactory;
 import net.sf.jailer.ui.databrowser.Desktop.RowBrowser;
+import net.sf.jailer.ui.pathfinder.HistoryPanel;
+import net.sf.jailer.ui.pathfinder.PathFinder;
+import net.sf.jailer.ui.pathfinder.PathFinder.Result;
 import net.sf.jailer.util.Pair;
 
 /**
@@ -97,7 +103,282 @@ public abstract class DBClosureView extends javax.swing.JDialog {
      */
     private final List<Color> bgColor = new ArrayList<Color>();
     
-    /**
+    private final class TableMouseListener implements MouseListener {
+		private Map<Integer, String> manuallySelected = new TreeMap<Integer, String>();
+
+		public void openPathFinder(final Table table, boolean fromHistory) {
+			PathFinder pathFinder = new PathFinder();
+			Result result = pathFinder.find(getRootTable(), table, getDataModel(), true, fromHistory, DBClosureView.this.parent);
+			if (result != null) {
+				List<Table> path = result.path;
+				mainPath.clear();
+			    mainPathAsSet.clear();
+			    Map<Table, Integer> fd = new HashMap<Table, Integer>();
+				for (int i = 0; i < result.path.size(); ++i) {
+					fd.put(result.path.get(i), i);
+				}
+				refreshTableModel(fd);
+			    selectedTable = null;
+//			    refresh();
+			    
+			    for (int i = 0; i < path.size(); ++i) {
+			    	Table r = path.get(i);
+			    	String tabName = getDataModel().getDisplayName(r);
+			        selectCell(result.expand && i == path.size() - 1, tabName, r);
+			    }
+			}
+		}
+
+		private void expandPath() {
+		    List<Table> path = new ArrayList<Table>();
+		    for (CellInfo ci: mainPath) {
+		        path.add(ci.table);
+		    }
+		    expandTablePath(path);
+		}
+
+		@Override
+		public void mouseReleased(MouseEvent e) {
+		}
+
+		@Override
+		public void mouseClicked(final MouseEvent e) {
+			// reset view
+			{
+			    Point position = e.getPoint();
+		        int row = closureTable.rowAtPoint(position);
+		        int column = closureTable.columnAtPoint(position);
+		        if (row >= 0 && column >= 0) {
+			    	Object value = closureTable.getModel().getValueAt(row, column);
+			        CellInfo ci = cellInfo.get(value);
+					if (currentForcedDistance != null && ci != null && !mainPathAsSet.contains(ci)) {
+				        mainPath.clear();
+		                mainPathAsSet.clear();
+		                currentForcedDistance = null;
+		                refreshTableModel(null);
+		                selectedTable = null;
+		                refresh();
+			        }
+		        }
+			}
+
+			// context menu
+		    if (SwingUtilities.isRightMouseButton(e)) {
+		        int row = closureTable.rowAtPoint(e.getPoint());
+		        int column = closureTable.columnAtPoint(e.getPoint());
+		        if (row < 0 || column < 0) return;
+		        final Object value = closureTable.getModel().getValueAt(row, column);
+		        if (value == null || !(value instanceof String)) return;
+		        final Table table = getDataModel().getTableByDisplayName((String) value);
+		        if (table != null) {
+		            if (selectedTable == null || !selectedTable.equals(value)) {
+		                if (cellInfo.containsKey(value) && !cellInfo.get(value).selected) {
+		                    selectTableCell(column, row);
+		                }
+		            }
+//                        int tableLevel = -1;
+//                        if (cellInfo.containsKey(value)) {
+//                        	tableLevel = cellInfo.get(value).level;
+//                        }
+//                        JCheckBoxMenuItem exclude = new JCheckBoxMenuItem("Exclude " + getDataModel().getDisplayName(table) + " from Path");
+//                        exclude.setSelected(excludedFromPath.contains(table));
+//                        exclude.setEnabled(mainPath.contains(cellInfo.get(value)) || excludedFromPath.contains(table));
+//                        exclude.addActionListener(new ActionListener() {
+//                            @Override
+//                            public void actionPerformed(ActionEvent e) {
+//                                if (!excludedFromPath.contains(table)) {
+//                                    excludedFromPath.add(table);
+//                                } else {
+//                                    excludedFromPath.remove(table);
+//                                }
+//                                mainPath.clear();
+//                                mainPathAsSet.clear();
+//                                refresh();
+//                                CellInfo ci = cellInfo.get(selectedTable);
+//                                if (ci != null) {
+//                                    String st = selectedTable;
+//                                    selectedTable = null;
+//                                    select(st, ci);
+//                                }
+//                            }
+//                        });
+//                        
+//                        final Set<Table> toExclude = new HashSet<Table>();
+//                        for (Entry<String, CellInfo> ciE: cellInfo.entrySet()) {
+//                            if (ciE.getValue().selected && ciE.getValue().level == tableLevel) {
+//                            	Table tableByDisplayName = getDataModel().getTableByDisplayName(ciE.getKey());
+//								if (tableByDisplayName != null) {
+//									toExclude.add(tableByDisplayName);
+//								}
+//                            }
+//                        }
+//                        JCheckBoxMenuItem excludeAll = new JCheckBoxMenuItem("Exclude all with Distance " + (tableLevel  + 1) + " from Path");
+//                        excludeAll.setEnabled(toExclude.size() > 1);
+//                        excludeAll.addActionListener(new ActionListener() {
+//                            @Override
+//                            public void actionPerformed(ActionEvent e) {
+//                            	excludedFromPath.addAll(toExclude);
+//                                mainPath.clear();
+//                                mainPathAsSet.clear();
+//                                refresh();
+//                                CellInfo ci = cellInfo.get(selectedTable);
+//                                if (ci != null) {
+//                                    String st = selectedTable;
+//                                    selectedTable = null;
+//                                    select(st, ci);
+//                                }
+//                            }
+//                        });
+//		            JMenuItem deselect = new JMenuItem("Deselect path");
+//		            deselect.addActionListener(new ActionListener() {
+//		                @Override
+//		                public void actionPerformed(ActionEvent e) {
+//		                	mainPath.clear();
+//		                    mainPathAsSet.clear();
+//		                    excludedFromPath.clear();
+//		                    refreshTableModel();
+//		                    selectedTable = null;
+//		                    refresh();
+//		                }
+//		            });
+		            JMenuItem pathFinder = new JMenuItem("Find more complex path to " + getDataModel().getDisplayName(table));
+		            Table rt = getRootTable();
+		            if (rt == null || !rt.closure(false).contains(table)) {
+		            	pathFinder.setEnabled(false);
+		            }
+		            pathFinder.addActionListener(new ActionListener() {
+		                @Override
+		                public void actionPerformed(ActionEvent e) {
+		                	openPathFinder(table, false);
+		                }
+		            });
+		            
+		            JMenuItem openPath = new JMenuItem("Open path to " + getDataModel().getDisplayName(table));
+                    if (rt == null || !rt.closure(false).contains(table)) {
+		            	openPath.setEnabled(false);
+		            }
+                    openPath.addActionListener(new ActionListener() {
+                        @Override
+                        public void actionPerformed(ActionEvent e) {
+                            expandPath();
+                            DBClosureView.this.select(selectedTable);
+                        }
+                    });
+                    
+		            RowBrowser rb = getVisibleTables().get(table);
+		            if (rb == null) {
+		                if (!mainPath.isEmpty()) {
+		                    JPopupMenu menu = new JPopupMenu();
+		                    menu.add(openPath);
+		                    menu.add(new JSeparator());
+		                    menu.add(pathFinder);
+		                    UIUtil.showPopup(e.getComponent(), e.getX(), e.getY(), menu);
+		                }
+		            } else {
+		                JPopupMenu menu = new JPopupMenu();
+		                JMenuItem select = new JMenuItem("Select " + getDataModel().getDisplayName(table));
+		                select.addActionListener(new ActionListener() {
+		                    @Override
+		                    public void actionPerformed(ActionEvent e) {
+		                        DBClosureView.this.select((String) value);
+		                    }
+		                });
+		                menu.add(select);
+//                            menu.addSeparator();
+//                            menu.add(exclude);
+//                            menu.add(excludeAll);
+		                menu.addSeparator();
+		                JPopupMenu popup = rb.browserContentPane.createPopupMenu(null, -1, 0, 0, false);
+		                JPopupMenu popup2 = rb.browserContentPane.createSqlPopupMenu(null, -1, 0, 0, true, closureTable);
+		                popup.add(new JSeparator());
+		                for (Component c : popup.getComponents()) {
+		                    menu.add(c);
+		                }
+		                for (Component c : popup2.getComponents()) {
+		                    menu.add(c);
+		                }
+		                if (!mainPath.isEmpty()) {
+//		                	menu.addSeparator();
+//		                	menu.add(deselect);
+		                	menu.addSeparator();
+		                	menu.add(openPath);
+		                    menu.add(pathFinder);
+		                }
+		                UIUtil.showPopup(e.getComponent(), e.getX(), e.getY(), menu);
+		            }
+		        }
+		    }
+
+		    if (SwingUtilities.isLeftMouseButton(e)) {
+		        Point position = e.getPoint();
+		        int row = closureTable.rowAtPoint(position);
+		        int column = closureTable.columnAtPoint(position);
+		        if (row < 0 || column < 0) return;
+		        
+		        Object value = closureTable.getModel().getValueAt(row, column);
+		        if (value == null || !(value instanceof String)) return;
+		        final Table table = getDataModel().getTableByDisplayName((String) value);
+		        selectCell(e.getClickCount() > 1, value, table);
+		    }
+		}
+
+		private void selectCell(boolean expandPath, Object value, final Table table) {
+			if (table != null) {
+			    if (cellInfo.containsKey(value)) {
+			        String prevSelectedTable = selectedTable;
+			        CellInfo selectedCellInfo = cellInfo.get(value);
+			        if (selectedCellInfo.selected && !mainPathAsSet.contains(selectedCellInfo)) {
+			            manuallySelected.put(selectedCellInfo.level, (String) value);
+			            select(prevSelectedTable, selectedCellInfo);
+			        } else if (!selectedCellInfo.selected) {
+			            manuallySelected.clear();
+			            selectTableCell((String) value);
+			        } else {
+			        	scrollToTable(table);
+			        }
+			    }
+			    
+			    if (expandPath) {
+			    	if (!mainPath.isEmpty()) {
+			    		expandPath();
+			        }
+			    }
+			}
+		}
+
+		private void select(String toSelect, CellInfo selectedCellInfo) {
+		    TreeMap<Integer, String> newMS = new TreeMap<Integer, String>(manuallySelected);
+		    String lastFound = null;
+		    for (Entry<Integer, String> ms: manuallySelected.entrySet()) {
+		        find(ms.getValue());
+		        if (selectedCellInfo.level < ms.getKey() && !mainPathAsSet.contains(selectedCellInfo)) {
+		            manuallySelected = newMS;
+		            if (lastFound != null) {
+		            find(lastFound);
+		            }
+		            break;
+		        }
+		        newMS.put(ms.getKey(), ms.getValue());
+		        lastFound = ms.getValue();
+		    }
+		    if (toSelect != null && !toSelect.equals(selectedTable)) {
+		        find(toSelect);
+		    }
+		}
+
+		@Override
+		public void mouseEntered(MouseEvent e) {
+		}
+
+		@Override
+		public void mouseExited(MouseEvent e) {
+		}
+
+		@Override
+		public void mousePressed(MouseEvent e) {
+		}
+	}
+	/**
      * Holds infos about a cell in the closure-table.
      */
     private class CellInfo {
@@ -126,8 +407,10 @@ public abstract class DBClosureView extends javax.swing.JDialog {
     private List<CellInfo> mainPath = new ArrayList<CellInfo>();
     private HashSet<CellInfo> mainPathAsSet = new HashSet<CellInfo>();
     private Set<Pair<String, String>> dependencies = new HashSet<Pair<String,String>>();
-    private Set<Table> excludedFromPath = new HashSet<Table>();
+    private Map<Table, Integer> currentForcedDistance = null;
     private final JFrame parent;
+
+	private TableMouseListener tableMouseListener;
     
     /** Creates new form FindDialog 
      * @param rootTable */
@@ -166,6 +449,68 @@ public abstract class DBClosureView extends javax.swing.JDialog {
         findButton.setVisible(false);
         searchButton.setText("Find Table");
         
+        AutoCompletion.enable(findPathComboBox);
+        findPathComboBox.getEditor().getEditorComponent().addKeyListener(new KeyListener() {
+            @Override
+            public void keyTyped(KeyEvent e) {
+                if (e.getKeyChar() == '\n') {
+                	findPathComboBoxActionPerformed(null);
+                }
+            }
+            @Override
+            public void keyReleased(KeyEvent e) {
+            }
+            @Override
+            public void keyPressed(KeyEvent arg0) {
+            }
+        });
+        gridBagConstraints = new java.awt.GridBagConstraints();
+        gridBagConstraints.gridx = 2;
+        gridBagConstraints.gridy = 20;
+		JButton stFindPathButton = StringSearchPanel.createSearchButton(
+				this.parent, findPathComboBox, 
+				new Object() {
+					public String toString() {
+						Table rootTable = getRootTable();
+						return (rootTable != null? ("From " + getDataModel().getDisplayName(rootTable) + " - ") : "") + "Select destination or choose from History";
+					}
+				},
+				new Runnable() {
+					@Override
+		            public void run() {
+		            	Object toFind = findPathComboBox.getSelectedItem();
+						if (toFind != null) {
+						    CellInfo cellInfo = DBClosureView.this.cellInfo.get(toFind);
+						    if (cellInfo != null) {
+						    	tableMouseListener.openPathFinder(cellInfo.table, false);
+						    }
+						}
+		            }
+				}, null, null, null, true, new AdditionalComponentFactory() {
+			@Override
+			public JComponent create(final StringSearchPanel searchPanel) {
+				HistoryPanel historyPanel = new HistoryPanel(getRootTable(), getDataModel()) {
+					private static final long serialVersionUID = 1L;
+
+					@Override
+					protected void close() {
+						searchPanel.close();
+					}
+
+					@Override
+					protected void apply(Table source, Table destination) {
+						tableMouseListener.openPathFinder(destination, true);
+					}
+				};
+		        return historyPanel;
+			}
+		});
+		tablePanel.add(stFindPathButton, gridBagConstraints);
+        
+        findPathComboBox.setVisible(false);
+        findPathButton.setVisible(false);
+        stFindPathButton.setText("Find Path to...");
+        
         columnsComboBox.setModel(new DefaultComboBoxModel<Integer>(new Integer[] { 
                 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20
         }));
@@ -245,197 +590,10 @@ public abstract class DBClosureView extends javax.swing.JDialog {
         };
         closureTable.setShowGrid(false);
         closureTable.setSurrendersFocusOnKeystroke(true);
+        closureTable.getTableHeader().setReorderingAllowed(false);
         jScrollPane1.setViewportView(closureTable);
 
-        closureTable.addMouseListener(new MouseListener() {
-            
-            private Map<Integer, String> manuallySelected = new TreeMap<Integer, String>();
-
-                private void expandPath() {
-                    List<Table> path = new ArrayList<Table>();
-                    for (CellInfo ci: mainPath) {
-                        path.add(ci.table);
-                    }
-                    expandTablePath(path);
-                }
-                
-                @Override
-				public void mouseClicked(final MouseEvent e) {
-                    mouseReleased(e);
-                }
-                
-                @Override
-				public void mouseReleased(MouseEvent e) {
-                // context menu
-                if (SwingUtilities.isRightMouseButton(e)) {
-                    int row = closureTable.rowAtPoint(e.getPoint());
-                    int column = closureTable.columnAtPoint(e.getPoint());
-                    if (row < 0 || column < 0) return;
-                    final Object value = closureTable.getModel().getValueAt(row, column);
-                    if (value == null || !(value instanceof String)) return;
-                    final Table table = getDataModel().getTableByDisplayName((String) value);
-                    if (table != null) {
-                        if (selectedTable == null || !selectedTable.equals(value)) {
-                            if (cellInfo.containsKey(value) && !cellInfo.get(value).selected) {
-                                selectTableCell(column, row);
-                            }
-                        }
-                        JCheckBoxMenuItem exclude = new JCheckBoxMenuItem("Exclude " + getDataModel().getDisplayName(table) + " from Path");
-                        exclude.setSelected(excludedFromPath.contains(table));
-                        exclude.setEnabled(mainPath.contains(cellInfo.get(value)) || excludedFromPath.contains(table));
-                        exclude.addActionListener(new ActionListener() {
-                            @Override
-                            public void actionPerformed(ActionEvent e) {
-                                if (!excludedFromPath.contains(table)) {
-                                    excludedFromPath.add(table);
-                                } else {
-                                    excludedFromPath.remove(table);
-                                }
-                                mainPath.clear();
-                                mainPathAsSet.clear();
-                                refresh();
-                                CellInfo ci = cellInfo.get(selectedTable);
-                                if (ci != null) {
-                                    String st = selectedTable;
-                                    selectedTable = null;
-                                    select(st, ci);
-                                }
-                            }
-                        });
-                        JMenuItem deselect = new JMenuItem("Deselect Path");
-                        deselect.addActionListener(new ActionListener() {
-                            @Override
-                            public void actionPerformed(ActionEvent e) {
-                            	mainPath.clear();
-                                mainPathAsSet.clear();
-                                excludedFromPath.clear();
-                                refreshTableModel();
-                                selectedTable = null;
-                                refresh();
-                            }
-                        });
-                        RowBrowser rb = getVisibleTables().get(table);
-                        if (rb == null) {
-                            if (!mainPath.isEmpty()) {
-                                JPopupMenu menu = new JPopupMenu();
-                                JMenuItem open = new JMenuItem("Open Path to " + selectedTable);
-                                open.addActionListener(new ActionListener() {
-                                    @Override
-                                    public void actionPerformed(ActionEvent e) {
-                                        expandPath();
-                                    }
-                                });
-                                menu.add(open);
-                                JMenuItem openAndSelect = new JMenuItem("Open Path to and Select " + selectedTable);
-                                openAndSelect.addActionListener(new ActionListener() {
-                                    @Override
-                                    public void actionPerformed(ActionEvent e) {
-                                        expandPath();
-                                        DBClosureView.this.select(selectedTable);
-                                    }
-                                });
-                                menu.add(openAndSelect);
-                                menu.add(new JSeparator());
-                                menu.add(exclude);
-                                menu.add(deselect);
-                                menu.show(e.getComponent(), e.getX(), e.getY());
-                            }
-                        } else {
-                            JPopupMenu menu = new JPopupMenu();
-                            JMenuItem select = new JMenuItem("Select " + getDataModel().getDisplayName(table));
-                            select.addActionListener(new ActionListener() {
-                                @Override
-                                public void actionPerformed(ActionEvent e) {
-                                    DBClosureView.this.select((String) value);
-                                }
-                            });
-                            menu.add(select);
-                            menu.addSeparator();
-                            menu.add(exclude);
-                            menu.addSeparator();
-                            JPopupMenu popup = rb.browserContentPane.createPopupMenu(null, -1, 0, 0, false);
-                            JPopupMenu popup2 = rb.browserContentPane.createSqlPopupMenu(null, -1, 0, 0, true);
-                            popup.add(new JSeparator());
-                            for (Component c : popup.getComponents()) {
-                                menu.add(c);
-                            }
-                            for (Component c : popup2.getComponents()) {
-                                menu.add(c);
-                            }
-                            if (!mainPath.isEmpty()) {
-                            	menu.addSeparator();
-                            	menu.add(deselect);
-                            }
-                            UIUtil.fit(popup);
-                            menu.show(e.getComponent(), e.getX(), e.getY());
-                        }
-                    }
-                }
-
-                if (SwingUtilities.isLeftMouseButton(e)) {
-                    Point position = e.getPoint();
-                    int row = closureTable.rowAtPoint(position);
-                    int column = closureTable.columnAtPoint(position);
-                    if (row < 0 || column < 0) return;
-                    
-                    Object value = closureTable.getModel().getValueAt(row, column);
-                    if (value == null || !(value instanceof String)) return;
-                    final Table table = getDataModel().getTableByDisplayName((String) value);
-                    if (table != null) {
-                        if (cellInfo.containsKey(value)) {
-                            String prevSelectedTable = selectedTable;
-                            CellInfo selectedCellInfo = cellInfo.get(value);
-                            if (selectedCellInfo.selected && !mainPathAsSet.contains(selectedCellInfo)) {
-                                manuallySelected.put(selectedCellInfo.level, (String) value);
-                                select(prevSelectedTable, selectedCellInfo);
-                            } else if (!selectedCellInfo.selected) {
-                                manuallySelected.clear();
-                                selectTableCell(column, row);
-                            }
-                        }
-                        
-                        if (e.getClickCount() > 1) {
-                            RowBrowser rb = getVisibleTables().get(table);
-                            if (rb == null) {
-                                if (!mainPath.isEmpty()) {
-                                    expandPath();
-                                }
-                            }
-                        }
-                    }
-                }
-            }
-
-            private void select(String toSelect, CellInfo selectedCellInfo) {
-                TreeMap<Integer, String> newMS = new TreeMap<Integer, String>(manuallySelected);
-                String lastFound = null;
-                for (Entry<Integer, String> ms: manuallySelected.entrySet()) {
-                    find(ms.getValue());
-                    if (selectedCellInfo.level < ms.getKey() && !mainPathAsSet.contains(selectedCellInfo)) {
-                        manuallySelected = newMS;
-                        if (lastFound != null) {
-                        find(lastFound);
-                        }
-                        break;
-                    }
-                    newMS.put(ms.getKey(), ms.getValue());
-                    lastFound = ms.getValue();
-                }
-                if (toSelect != null && !toSelect.equals(selectedTable)) {
-                    find(toSelect);
-                }
-            }
-        
-            @Override
-			public void mouseEntered(MouseEvent e) {
-            }
-            @Override
-			public void mouseExited(MouseEvent e) {
-            }
-            @Override
-			public void mousePressed(MouseEvent e) {
-            }
-        });
+        closureTable.addMouseListener(tableMouseListener = new TableMouseListener());
         
         searchComboBox.setMaximumRowCount(30);
         
@@ -506,9 +664,9 @@ public abstract class DBClosureView extends javax.swing.JDialog {
                         } else if (getVisibleTables().containsKey(t)) {
                             ((JLabel) render).setFont(onPath? italicBold : italic);
                         }
-                        if (excludedFromPath.contains(t)) {
-                            ((JLabel) render).setForeground(new Color(180, 180, 180));
-                        }
+//                        if (currentForcedDistance != null && currentForcedDistance.containsKey(t)) {
+//                            ((JLabel) render).setForeground(new Color(180, 180, 180));
+//                        }
                         if (getVisibleTables().containsKey(t)) {
                             ((JLabel) render).setBorder(BorderFactory.createBevelBorder(BevelBorder.RAISED, Color.lightGray, Color.gray));
                         }
@@ -597,42 +755,46 @@ public abstract class DBClosureView extends javax.swing.JDialog {
     private void selectTableCell(int col, int row) {
         if (col >= 1 && row >= 0) {
             String displayName = (String) closureTable.getModel().getValueAt(row, col);
-            closureTable.getSelectionModel().clearSelection();
-            for (CellInfo c: cellInfo.values()) {
-                c.selected = false;
+            selectTableCell(displayName);
+        }
+    }
+
+    private void selectTableCell(String displayName) {
+        closureTable.getSelectionModel().clearSelection();
+        for (CellInfo c: cellInfo.values()) {
+            c.selected = false;
+        }
+        if (displayName != null && !"".equals(displayName)) {
+            Table prevTable = null;
+            if (selectedTable != null) {
+                prevTable = getDataModel().getTableByDisplayName(selectedTable);
             }
-            if (displayName != null && !"".equals(displayName)) {
-                Table prevTable = null;
-                if (selectedTable != null) {
-                    prevTable = getDataModel().getTableByDisplayName(selectedTable);
-                }
-                selectedTable = displayName;
-                searchComboBox.setSelectedItem(selectedTable);
-                repaintClosureView();
-                Table table = getDataModel().getTableByDisplayName(selectedTable);
-                if (table != null) {
-                    CellInfo selectionInfo = cellInfo.get(selectedTable);
-                    selectionInfo.select();
-                    if (prevTable != table) {
-                        Set<Table> visibleTables = getVisibleTables().keySet();
-                        Set<Table> mainPathTables = new HashSet<Table>();
-                        for (CellInfo ci: mainPath) {
-                            mainPathTables.add(ci.table);
-                        }
-                        Set<CellInfo> pathToVisibleTable = shortestPathToVisibleTable(visibleTables, selectionInfo);
-                        Set<CellInfo> pathToMainPathTable = shortestPathToVisibleTable(mainPathTables, selectionInfo);
-                        List<CellInfo> pathVT = new ArrayList<CellInfo>();
-                        int vtMaxRow = fillPath(selectionInfo, visibleTables, pathToVisibleTable, pathVT);
-                        List<CellInfo> pathST = new ArrayList<CellInfo>();
-                        int stMaxRow = fillPath(selectionInfo, mainPathTables, pathToMainPathTable, pathST);
-                        if (pathToMainPathTable.isEmpty()) { // (vtMaxRow > stMaxRow) {
-                            mainPath = pathVT;
-                        } else {
-                            mainPath = pathST;
-                        }
+            selectedTable = displayName;
+            searchComboBox.setSelectedItem(selectedTable);
+            repaintClosureView();
+            Table table = getDataModel().getTableByDisplayName(selectedTable);
+            if (table != null) {
+                CellInfo selectionInfo = cellInfo.get(selectedTable);
+                selectionInfo.select();
+                if (prevTable != table) {
+                    Set<Table> visibleTables = getVisibleTables().keySet();
+                    Set<Table> mainPathTables = new HashSet<Table>();
+                    for (CellInfo ci: mainPath) {
+                        mainPathTables.add(ci.table);
+                    }
+                    Set<CellInfo> pathToVisibleTable = shortestPathToVisibleTable(visibleTables, selectionInfo);
+                    Set<CellInfo> pathToMainPathTable = shortestPathToVisibleTable(mainPathTables, selectionInfo);
+                    List<CellInfo> pathVT = new ArrayList<CellInfo>();
+                    int vtMaxRow = fillPath(selectionInfo, visibleTables, pathToVisibleTable, pathVT);
+                    List<CellInfo> pathST = new ArrayList<CellInfo>();
+                    int stMaxRow = fillPath(selectionInfo, mainPathTables, pathToMainPathTable, pathST);
+                    if (pathToMainPathTable.isEmpty()) { // (vtMaxRow > stMaxRow) {
+                        mainPath = pathVT;
+                    } else {
+                        mainPath = pathST;
                     }
-                    mainPathAsSet = new HashSet<CellInfo>(mainPath);
                 }
+                mainPathAsSet = new HashSet<CellInfo>(mainPath);
             }
         }
     }
@@ -696,7 +858,7 @@ public abstract class DBClosureView extends javax.swing.JDialog {
      */
     public void refresh() {
         String prevSelection = selectedTable;
-        refreshTableModel();
+        refreshTableModel(null);
         if (cellInfo.containsKey(prevSelection)) {
             selectedTable = prevSelection;
         } else {
@@ -708,12 +870,17 @@ public abstract class DBClosureView extends javax.swing.JDialog {
     /**
      * Refreshes the table model.
      */
-    private void refreshTableModel() {
+    private void refreshTableModel(Map<Table, Integer> forcedDistance) {
         cellInfo.clear();
         dependencies.clear();
         Table selectedTable = getSelectedTable();
         
-        Object[] columns = new Object[tablesPerLine + 1];
+        currentForcedDistance = forcedDistance;
+		if (forcedDistance == null) {
+			forcedDistance = new HashMap<Table, Integer>();
+		}
+		
+		Object[] columns = new Object[tablesPerLine + 1];
         for (int i = 0; i < columns.length; ++i) {
             columns[i] = "";
         }
@@ -740,7 +907,7 @@ public abstract class DBClosureView extends javax.swing.JDialog {
         boolean isolated = false;
         
         final Color BG1 = new Color(255, 255, 255);
-        final Color BG2 = new Color(230, 255, 255);
+        final Color BG2 = new Color(242, 255, 242);
         final Color BG3 = new Color(255, 255, 240);
         final Color BG4 = new Color(220, 220, 220);
         final Color BG5 = new Color(255, 240, 240);
@@ -796,27 +963,40 @@ public abstract class DBClosureView extends javax.swing.JDialog {
                 Table table = getDataModel().getTableByDisplayName(t);
                 if (table != null) {
                     CellInfo cellInfoT = this.cellInfo.get(t);
-                    if (!excludedFromPath.contains(table)) {
-                        for (Association association: table.associations) {
-                            String displayName = getDataModel().getDisplayName(association.destination);
-                            if (!association.isIgnored()) {
-                                if (!visited.contains(displayName)) {
-                                    nextLine.add(displayName);
-                                    visited.add(displayName);
-                                    CellInfo cellInfo = new CellInfo(distance);
-                                    cellInfo.parents.add(cellInfoT);
-                                    cellInfo.table = association.destination;
+                    for (Association association: table.associations) {
+                    	Integer fd = forcedDistance.get(association.destination);
+						if (fd != null && fd != distance + 1) {
+							continue;
+						}
+						boolean addToParent = true;
+                        if (forcedDistance.containsKey(association.destination)) {
+                        	if (!forcedDistance.containsKey(table)) {
+                        		addToParent = false;
+                        	}
+                        }
+						String displayName = getDataModel().getDisplayName(association.destination);
+                        if (!association.isIgnored() || 
+                        		(forcedDistance.containsKey(association.source) && forcedDistance.containsKey(association.destination))) {
+                            if (!visited.contains(displayName)) {
+                                nextLine.add(displayName);
+                                visited.add(displayName);
+                                CellInfo cellInfo = new CellInfo(distance);
+                                if (addToParent) {
+    								cellInfo.parents.add(cellInfoT);
+                                }
+                                cellInfo.table = association.destination;
+                                if (association.isInsertDestinationBeforeSource()) {
+                                    dependencies.add(new Pair<String, String>(t, displayName));
+                                }
+                                this.cellInfo.put(displayName, cellInfo);
+                            } else {
+                                if (nextLine.contains(displayName)) {
+                                	if (addToParent) {
+                                		this.cellInfo.get(displayName).parents.add(cellInfoT);
+                                	}
                                     if (association.isInsertDestinationBeforeSource()) {
                                         dependencies.add(new Pair<String, String>(t, displayName));
                                     }
-                                    this.cellInfo.put(displayName, cellInfo);
-                                } else {
-                                    if (nextLine.contains(displayName)) {
-                                        this.cellInfo.get(displayName).parents.add(cellInfoT);
-                                        if (association.isInsertDestinationBeforeSource()) {
-                                            dependencies.add(new Pair<String, String>(t, displayName));
-                                        }
-                                    }
                                 }
                             }
                         }
@@ -939,6 +1119,8 @@ public abstract class DBClosureView extends javax.swing.JDialog {
         vector.addAll(nonIsolated);
         searchComboBox.setModel(new DefaultComboBoxModel<String>(vector));
         searchComboBox.setSelectedItem("");
+        findPathComboBox.setModel(new DefaultComboBoxModel<String>(vector));
+        findPathComboBox.setSelectedItem("");
     }
 
     private Table getSelectedTable() {
@@ -965,9 +1147,9 @@ public abstract class DBClosureView extends javax.swing.JDialog {
         tablePanel = new javax.swing.JPanel();
         jScrollPane1 = new javax.swing.JScrollPane();
         closureTable = new javax.swing.JTable();
-        searchComboBox = new net.sf.jailer.ui.JComboBox();
+        searchComboBox = new JComboBox();
         jLabel7 = new javax.swing.JLabel();
-        columnsComboBox = new net.sf.jailer.ui.JComboBox();
+        columnsComboBox = new javax.swing.JComboBox();
         findButton = new javax.swing.JButton();
         jLabel1 = new javax.swing.JLabel();
         jLabel2 = new javax.swing.JLabel();
@@ -977,6 +1159,8 @@ public abstract class DBClosureView extends javax.swing.JDialog {
         jLabel6 = new javax.swing.JLabel();
         jLabel8 = new javax.swing.JLabel();
         jLabel9 = new javax.swing.JLabel();
+        findPathComboBox = new JComboBox();
+        findPathButton = new javax.swing.JButton();
 
         contentPanel.setLayout(new java.awt.GridBagLayout());
 
@@ -1018,8 +1202,7 @@ public abstract class DBClosureView extends javax.swing.JDialog {
 
         searchComboBox.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "Item 1", "Item 2", "Item 3", "Item 4" }));
         searchComboBox.addActionListener(new java.awt.event.ActionListener() {
-            @Override
-			public void actionPerformed(java.awt.event.ActionEvent evt) {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
                 searchComboBoxActionPerformed(evt);
             }
         });
@@ -1030,7 +1213,7 @@ public abstract class DBClosureView extends javax.swing.JDialog {
 
         jLabel7.setText("Columns ");
         gridBagConstraints = new java.awt.GridBagConstraints();
-        gridBagConstraints.gridx = 3;
+        gridBagConstraints.gridx = 7;
         gridBagConstraints.gridy = 20;
         gridBagConstraints.anchor = java.awt.GridBagConstraints.EAST;
         gridBagConstraints.weightx = 1.0;
@@ -1038,20 +1221,18 @@ public abstract class DBClosureView extends javax.swing.JDialog {
 
         columnsComboBox.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "Item 1", "Item 2", "Item 3", "Item 4" }));
         columnsComboBox.addItemListener(new java.awt.event.ItemListener() {
-            @Override
-			public void itemStateChanged(java.awt.event.ItemEvent evt) {
+            public void itemStateChanged(java.awt.event.ItemEvent evt) {
                 columnsComboBoxItemStateChanged(evt);
             }
         });
         gridBagConstraints = new java.awt.GridBagConstraints();
-        gridBagConstraints.gridx = 4;
+        gridBagConstraints.gridx = 8;
         gridBagConstraints.gridy = 20;
         tablePanel.add(columnsComboBox, gridBagConstraints);
 
         findButton.setText("Find");
         findButton.addActionListener(new java.awt.event.ActionListener() {
-            @Override
-			public void actionPerformed(java.awt.event.ActionEvent evt) {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
                 findButtonActionPerformed(evt);
             }
         });
@@ -1110,6 +1291,30 @@ public abstract class DBClosureView extends javax.swing.JDialog {
         gridBagConstraints.gridy = 8;
         tablePanel.add(jLabel9, gridBagConstraints);
 
+        findPathComboBox.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "Item 1", "Item 2", "Item 3", "Item 4" }));
+        findPathComboBox.addActionListener(new java.awt.event.ActionListener() {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
+                findPathComboBoxActionPerformed(evt);
+            }
+        });
+        gridBagConstraints = new java.awt.GridBagConstraints();
+        gridBagConstraints.gridx = 4;
+        gridBagConstraints.gridy = 20;
+        tablePanel.add(findPathComboBox, gridBagConstraints);
+
+        findPathButton.setText("Find Path to...");
+        findPathButton.addActionListener(new java.awt.event.ActionListener() {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
+                findPathButtonActionPerformed(evt);
+            }
+        });
+        gridBagConstraints = new java.awt.GridBagConstraints();
+        gridBagConstraints.gridx = 5;
+        gridBagConstraints.gridy = 20;
+        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
+        gridBagConstraints.insets = new java.awt.Insets(0, 4, 0, 0);
+        tablePanel.add(findPathButton, gridBagConstraints);
+
         gridBagConstraints = new java.awt.GridBagConstraints();
         gridBagConstraints.gridx = 1;
         gridBagConstraints.gridy = 1;
@@ -1132,6 +1337,12 @@ public abstract class DBClosureView extends javax.swing.JDialog {
         find((String) toFind);
     }//GEN-LAST:event_findButtonActionPerformed
 
+    private void findPathComboBoxActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_findPathComboBoxActionPerformed
+    }//GEN-LAST:event_findPathComboBoxActionPerformed
+
+    private void findPathButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_findPathButtonActionPerformed
+    }//GEN-LAST:event_findPathButtonActionPerformed
+
     protected void find(String toFind) {
         if (toFind != null && !toFind.equals(selectedTable)) {
             CellInfo cellInfo = this.cellInfo.get(toFind);
@@ -1145,12 +1356,15 @@ public abstract class DBClosureView extends javax.swing.JDialog {
     protected abstract Map<Table, RowBrowser> getVisibleTables();
     protected abstract void expandTablePath(List<Table> path);
     protected abstract void select(String selectedTable);
+	protected abstract void scrollToTable(Table table);
 
-    // Variables declaration - do not modify//GEN-BEGIN:variables
+	// Variables declaration - do not modify//GEN-BEGIN:variables
     private javax.swing.JTable closureTable;
-    private net.sf.jailer.ui.JComboBox columnsComboBox;
+    private javax.swing.JComboBox columnsComboBox;
     public javax.swing.JPanel contentPanel;
     private javax.swing.JButton findButton;
+    private javax.swing.JButton findPathButton;
+    private JComboBox findPathComboBox;
     private javax.swing.JLabel jLabel1;
     private javax.swing.JLabel jLabel2;
     private javax.swing.JLabel jLabel3;
@@ -1161,7 +1375,7 @@ public abstract class DBClosureView extends javax.swing.JDialog {
     private javax.swing.JLabel jLabel8;
     private javax.swing.JLabel jLabel9;
     private javax.swing.JScrollPane jScrollPane1;
-    private net.sf.jailer.ui.JComboBox searchComboBox;
+    private JComboBox searchComboBox;
     public javax.swing.JPanel tablePanel;
     // End of variables declaration//GEN-END:variables
     

src/main/gui/net/sf/jailer/ui/databrowser/DesktopAnchorManager.java

@@ -0,0 +1,271 @@
+/*
+ * Copyright 2007 - 2018 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package net.sf.jailer.ui.databrowser;
+
+import java.awt.Component;
+import java.awt.Point;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.ComponentEvent;
+import java.awt.event.ComponentListener;
+import java.awt.event.MouseEvent;
+import java.awt.event.MouseListener;
+import java.util.Stack;
+
+import javax.swing.ImageIcon;
+import javax.swing.JButton;
+import javax.swing.JComponent;
+import javax.swing.JLabel;
+import javax.swing.JPanel;
+import javax.swing.SwingUtilities;
+import javax.swing.event.InternalFrameEvent;
+import javax.swing.event.InternalFrameListener;
+import javax.swing.plaf.basic.BasicInternalFrameUI;
+
+import net.sf.jailer.ui.databrowser.Desktop.RowBrowser;
+
+/**
+ * Desktop Anchor Manager.
+ * 
+ * @author Ralf Wisser
+ */
+public abstract class DesktopAnchorManager {
+
+	private final JPanel anchorPanel;
+	private final JButton anchorButton;
+	private Long disabledUntil;
+	private Long showedAt;
+	private RowBrowser currentBrowser;
+	private RowBrowser newestBrowser;
+	private final static int MAX_RETENDION = 2000;
+
+	public DesktopAnchorManager(JPanel anchorPanel) {
+		this.anchorPanel = anchorPanel;
+		this.anchorButton = new JButton(anchorIcon);
+		
+		this.anchorPanel.setVisible(false);
+		
+		anchorPanel.add(anchorButton);
+		anchorButton.setToolTipText("align horizontally with predecessors");
+		anchorButton.addActionListener(new ActionListener() {
+			@Override
+			public void actionPerformed(ActionEvent e) {
+				if (currentBrowser != null) {
+					reset(1000);
+					layout(currentBrowser);
+				}
+			}
+		});
+		anchorButton.addMouseListener(new MouseListener() {
+			@Override
+			public void mouseReleased(MouseEvent e) {
+			}
+			@Override
+			public void mousePressed(MouseEvent e) {
+			}
+			@Override
+			public void mouseExited(MouseEvent e) {
+				showedAt = System.currentTimeMillis();
+			}
+			@Override
+			public void mouseEntered(MouseEvent e) {
+				showedAt = null;
+			}
+			@Override
+			public void mouseClicked(MouseEvent e) {
+			}
+		});
+	}
+
+	public void onNewTableBrowser(final RowBrowser tableBrowser) {
+		newestBrowser = tableBrowser;
+		tableBrowser.internalFrame.addInternalFrameListener(new InternalFrameListener() {
+			@Override
+			public void internalFrameOpened(InternalFrameEvent e) {
+			}
+
+			@Override
+			public void internalFrameIconified(InternalFrameEvent e) {
+				reset();
+			}
+
+			@Override
+			public void internalFrameDeiconified(InternalFrameEvent e) {
+				reset();
+			}
+
+			@Override
+			public void internalFrameDeactivated(InternalFrameEvent e) {
+			}
+
+			@Override	
+			public void internalFrameClosing(InternalFrameEvent e) {
+			}
+
+			@Override
+			public void internalFrameClosed(InternalFrameEvent e) {
+				reset();
+				newestBrowser = null;
+			}
+
+			@Override
+			public void internalFrameActivated(InternalFrameEvent e) {
+			}
+		});
+		MouseListener showButton = new MouseListener() {
+			@Override
+			public void mouseReleased(MouseEvent e) {
+			}
+			@Override
+			public void mousePressed(MouseEvent e) {
+			}
+			@Override
+			public void mouseExited(MouseEvent e) {
+			}
+			@Override
+			public void mouseEntered(MouseEvent e) {
+				if (isApplicable(tableBrowser)) {
+					showButton(tableBrowser);
+				} else {
+					reset();
+				}
+			}
+			@Override
+			public void mouseClicked(MouseEvent e) {
+			}
+		};
+		tableBrowser.browserContentPane.menuPanel.addMouseListener(showButton);
+		
+		Stack<JPanel> panels = new Stack<JPanel>();
+		panels.add(tableBrowser.browserContentPane.menuPanel);
+		while (!panels.isEmpty()) {
+			JPanel panel = panels.pop();
+			synchronized (panel.getTreeLock()) {
+				for (Component comp: panel.getComponents()) {
+					if (comp instanceof JPanel) {
+						if (comp != tableBrowser.browserContentPane.sqlPanel) {
+							if (comp != tableBrowser.browserContentPane.relatedRowsPanel) {
+								panels.push((JPanel) comp);
+							}
+						}
+					} else if (comp instanceof JLabel) {
+						comp.addMouseListener(showButton);
+					}
+				}
+			}
+		}
+
+		tableBrowser.browserContentPane.addMouseListener(showButton);
+		tableBrowser.browserContentPane.sqlPanel.addMouseListener(showButton);
+		tableBrowser.browserContentPane.relatedRowsPanel.addMouseListener(showButton);
+		tableBrowser.browserContentPane.loadButton.addMouseListener(showButton);
+		tableBrowser.browserContentPane.rowsTable.addMouseListener(showButton);
+		if (tableBrowser.browserContentPane.thumbnail != null) {
+			tableBrowser.browserContentPane.thumbnail.addMouseListener(showButton);
+		}
+		if (tableBrowser.browserContentPane.andCondition.getEditor() != null) {
+			if (tableBrowser.browserContentPane.andCondition.getEditor().getEditorComponent() != null) {
+				tableBrowser.browserContentPane.andCondition.getEditor().getEditorComponent().addMouseListener(showButton);
+			}
+		}
+		Object bi = tableBrowser.internalFrame.getUI();
+		if (bi instanceof BasicInternalFrameUI) {
+			JComponent northPane = ((BasicInternalFrameUI) bi).getNorthPane();
+			if (northPane != null) {
+				northPane.addMouseListener(showButton);
+			}
+		}
+		tableBrowser.internalFrame.addComponentListener(new ComponentListener() {
+			@Override
+			public void componentShown(ComponentEvent e) {
+			}
+			@Override
+			public void componentResized(ComponentEvent e) {
+				reset(100);
+			}
+			@Override
+			public void componentMoved(ComponentEvent e) {
+				reset(100);
+			}
+			@Override
+			public void componentHidden(ComponentEvent e) {
+				reset();
+			}
+		});
+		reset();
+	}
+
+	protected void showButton(RowBrowser tableBrowser) {
+		if (disabledUntil != null && disabledUntil > System.currentTimeMillis()) {
+			return;
+		}
+		currentBrowser = tableBrowser;
+		anchorButton.setSize(anchorButton.getPreferredSize());
+		anchorPanel.setSize(anchorButton.getPreferredSize());
+		Point loc;
+		loc = tableBrowser.internalFrame.getLocation();
+		loc.translate(-anchorButton.getWidth(), 0);
+		anchorPanel.setLocation(0, 0);
+		loc = SwingUtilities.convertPoint(tableBrowser.internalFrame.getParent(), loc, anchorPanel);
+		anchorPanel.setLocation(loc);
+		anchorButton.setVisible(true);
+		anchorPanel.setVisible(true);
+		showedAt = System.currentTimeMillis();
+	}
+
+	void reset() {
+		reset(0);
+	}
+
+	void reset(int delay) {
+		anchorButton.setVisible(false);
+		anchorPanel.setVisible(false);
+		if (delay > 0) {
+			disabledUntil = System.currentTimeMillis() + delay;
+		}
+	}
+
+	public RowBrowser getNewestBrowser() {
+		return newestBrowser;
+	}
+
+	public void setNewestBrowser(RowBrowser browser) {
+		newestBrowser = browser;
+	}
+
+	public void checkRetention() {
+		long now = System.currentTimeMillis();
+		if (showedAt != null && showedAt + MAX_RETENDION < now) {
+			reset();
+		}
+	}
+	
+	protected abstract void layout(RowBrowser anchor);
+	protected abstract boolean isApplicable(RowBrowser tableBrowser);
+
+	private ImageIcon anchorIcon;
+	{
+        String dir = "/net/sf/jailer/ui/resource";
+        
+        // load images
+        try {
+            anchorIcon = new ImageIcon(DataBrowser.class.getResource(dir + "/anchor.png"));
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+}

src/main/gui/net/sf/jailer/ui/databrowser/DesktopAnimation.java

@@ -0,0 +1,283 @@
+/*
+ * Copyright 2007 - 2018 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package net.sf.jailer.ui.databrowser;
+
+import java.awt.Component;
+import java.awt.Point;
+import java.awt.Rectangle;
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.LinkedHashMap;
+import java.util.Map;
+import java.util.Map.Entry;
+
+import javax.swing.JInternalFrame;
+import javax.swing.SwingUtilities;
+
+import net.sf.jailer.ui.UIUtil;
+
+/**
+ * Animates layout changes of {@link Desktop}.
+ * 
+ * @author Ralf Wisser
+ */
+public class DesktopAnimation {
+	
+	private final double DURATION = 750;
+	private final Desktop desktop;
+
+	/**
+	 * Animation.
+	 */
+	abstract class Animation {
+		private long startTime;
+		public void start() {
+			startTime = System.currentTimeMillis();
+			stopScrolling = false;
+		}
+		abstract boolean animate(double f);
+	};
+
+	/**
+	 * Animation per subject (started).
+	 */
+	private Map<Object, Animation> animations = Collections.synchronizedMap(new LinkedHashMap<Object, Animation>());
+
+	/**
+	 * Animation per subject (waiting).
+	 */
+	private Map<Object, Animation> waiting = new LinkedHashMap<Object, Animation>();
+
+	/**
+	 * Constructor.
+	 * 
+	 * @param desktop the desktop
+	 */
+	public DesktopAnimation(Desktop desktop) {
+		this.desktop = desktop;
+	}
+	
+	/**
+	 * Scrolls desktop to a given location.
+	 */
+	class ScrollTo extends Animation {
+		private final Point scrollFrom;
+		private final int initialWidth;
+		private final int initialHeight;
+		private final Rectangle scrollTo;
+
+		public ScrollTo(Rectangle scrollTo, Point scrollFrom, int initialWidth, int initialHeight) {
+			this.scrollFrom = scrollFrom;
+			this.initialWidth = initialWidth;
+			this.initialHeight = initialHeight;
+			this.scrollTo = scrollTo;
+		}
+
+		public boolean animate(double f) {
+			if (stopScrolling) {
+				return false;
+			}
+			if (scrollTo != null) {
+				int w = wAvg(f, initialWidth, scrollTo.width);
+				int h = wAvg(f, initialHeight, scrollTo.height);
+				int x = (int) (scrollFrom.x + f * (scrollTo.x + scrollTo.width / 2 - scrollFrom.x)) - w / 2;
+				int y = (int) (scrollFrom.y + f * (scrollTo.y + scrollTo.height / 2 - scrollFrom.y)) - h / 2;
+				desktop.checkDesktopSize();
+				desktop.scrollRectToVisible(new Rectangle(x, y, w, h));
+			}
+			return true;
+		}
+	}
+ 
+	/**
+	 * Moves an internal frame of the desktop.
+	 */
+	class MoveIFrame extends Animation {
+		private final JInternalFrame iFrame;
+		private final Rectangle moveTo;
+		private final Rectangle moveFrom;
+		private final BrowserContentPane browserContentPane;
+	
+		public MoveIFrame(JInternalFrame iFrame, BrowserContentPane browserContentPane, Rectangle moveTo) {
+			this.iFrame = iFrame;
+			this.browserContentPane = browserContentPane;
+			this.moveTo = moveTo;
+			this.moveFrom = iFrame.getBounds();
+		}
+
+		public boolean animate(double f) {
+			int wx = wAvg(f, moveFrom.x, moveTo.x);
+			int wy = wAvg(f, moveFrom.y, moveTo.y);
+			int ww = wAvg(f, moveFrom.width, moveTo.width);
+			int wh = wAvg(f, moveFrom.height, moveTo.height);
+			if (f < 1.0 && Math.abs(ww - iFrame.getWidth()) < 4 && Math.abs(wh - iFrame.getHeight()) < 4) {
+				iFrame.setLocation(wx, wy);
+			} else {
+				iFrame.setBounds(wx, wy, ww, wh);
+			}
+			if (f == 1.0) {
+				browserContentPane.adjustRowTableColumnsWidth();
+			}
+			return !(wx == moveTo.x && wy == moveTo.y && ww == moveTo.width && wh == moveTo.height);
+		}
+	}
+
+	/**
+	 * Performs an animation step for each animation. 
+	 */
+	public boolean animate() {
+		boolean result = false;
+		for (Iterator<Entry<Object, Animation>> i = animations.entrySet().iterator(); i.hasNext(); ) {
+			Animation animation = i.next().getValue();
+			double f = (System.currentTimeMillis() - animation.startTime) / DURATION;
+			double fs;
+
+			if (f > 1.0) {
+				f = 1.0;
+				fs = 1.0;
+			} else {
+				final double M1 = -3;
+				final double M2 = 5;
+				fs = sig(f * (-M1 + M2) + M1);
+			}
+
+			if (!animation.animate(fs)) {
+				i.remove();
+				continue;
+			}
+			result = true;
+
+			if (f == 1.0) {
+				i.remove();
+			}
+		}
+		desktop.checkDesktopSize();
+		return result;
+	}
+
+	private double sig(double x) {
+		return 1.0 / (1.0 + Math.exp(-x));
+	}
+	
+	/**
+	 * Scrolls desktop to a given location (animated).
+	 * 
+	 * @param vr the location
+	 */
+	public void scrollRectToVisible(Rectangle vr) {
+		Rectangle svr = desktop.getScrollPane().getViewport().getViewRect();
+		if (!svr.contains(vr)) {
+			int mx = vr.x + vr.width / 2;
+			int my = vr.y + vr.height / 2;
+			if (mx < svr.x) {
+				mx = svr.x;
+			}
+			if (my < svr.y) {
+				my = svr.y;
+			}
+			if (mx > svr.x + svr.width) {
+				mx = svr.x + svr.width;
+			}
+			if (my > svr.y + svr.height) {
+				my = svr.y + svr.height;
+			}
+			startAnimation(desktop, new ScrollTo(vr, new Point(mx, my), 2 * Math.min(mx - svr.x, svr.x + svr.width - mx), 2 * Math.min(my - svr.y, svr.y + svr.height - my)));
+		} else {
+			waiting.remove(desktop);
+			animations.remove(desktop);
+		}
+	}
+
+	/**
+	 * Scrolls desktop to a given location (immediately).
+	 * 
+	 * @param vr the location
+	 */
+	public void scrollRectToVisibleImmediately(Rectangle vr) {
+		desktop.scrollRectToVisible(vr);
+		waiting.remove(desktop);
+		animations.remove(desktop);
+	}
+
+	/**
+	 * Sets the bounds of an internal frame (animated).
+	 * 
+	 * @param iFrame the frame
+	 * @param browserContentPane the content pane
+	 * @param r new bounds
+	 */
+	public void setIFrameBounds(JInternalFrame iFrame, BrowserContentPane browserContentPane, Rectangle r) {
+		startAnimation(iFrame, new MoveIFrame(iFrame, browserContentPane, r));
+	}
+
+	/**
+	 * Sets the bounds of an internal frame (immediately).
+	 * 
+	 * @param iFrame the frame
+	 * @param browserContentPane the content pane
+	 * @param r new bounds
+	 */
+	public void setIFrameBoundsImmediately(JInternalFrame internalFrame, BrowserContentPane browserContentPane, Rectangle newBounds) {
+		internalFrame.setBounds(newBounds);
+		browserContentPane.adjustRowTableColumnsWidth();
+		waiting.remove(internalFrame);
+		animations.remove(internalFrame);
+	}
+
+	public Rectangle getIFrameBounds(JInternalFrame iFrame) {
+		Animation animation = animations.get(iFrame);
+		if (animation instanceof MoveIFrame) {
+			return ((MoveIFrame) animation).moveTo;
+		}
+		animation = waiting.get(iFrame);
+		if (animation instanceof MoveIFrame) {
+			return ((MoveIFrame) animation).moveTo;
+		}
+		return iFrame.getBounds();
+	}
+
+	private int wAvg(double f, int a, int b) {
+		return (int) (a + f * (b - a));
+	}
+	
+	private void startAnimation(Object key, Animation animation) {
+		Component desktopAncestor = SwingUtilities.getWindowAncestor(desktop);
+		if (desktopAncestor == null) {
+			desktopAncestor = desktop;
+		}
+		final Component fDesktopAncestor = desktopAncestor;
+		UIUtil.setWaitCursor(desktopAncestor);
+		waiting.put(key, animation);
+		UIUtil.invokeLater(12, new Runnable() {
+			@Override
+			public void run() {
+				UIUtil.resetWaitCursor(fDesktopAncestor);
+				for (Entry<Object, Animation> e: waiting.entrySet()) {
+					e.getValue().start();
+					animations.put(e.getKey(), e.getValue());
+				}
+				waiting.clear();
+			}
+		});
+	}
+
+	public static boolean stopScrolling = false;
+	
+	public boolean isActive() {
+		return !animations.isEmpty();
+	}
+
+}

src/main/gui/net/sf/jailer/ui/databrowser/DesktopIFrameStateChangeRenderer.java

@@ -0,0 +1,158 @@
+/*
+ * Copyright 2007 - 2018 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package net.sf.jailer.ui.databrowser;
+
+import java.awt.BasicStroke;
+import java.awt.Color;
+import java.awt.Graphics2D;
+import java.awt.Rectangle;
+import java.awt.RenderingHints;
+import java.awt.geom.Path2D;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+
+import javax.swing.JInternalFrame;
+
+import net.sf.jailer.ui.UIUtil;
+
+/**
+ * Renders state changes of {@link JInternalFrame}s in {@link Desktop}.
+ * 
+ * @author Ralf Wisser
+ */
+public class DesktopIFrameStateChangeRenderer {
+	
+	private final double DURATION = 1500.0;
+	private List<JInternalFrame> atomicBlock = null;
+	
+	private class StateChange {
+		JInternalFrame iFrame;
+		long startTime;
+		double factorOffset = 0;
+	}
+	
+	private Map<JInternalFrame, StateChange> stateChanges = new LinkedHashMap<JInternalFrame, StateChange>();
+	
+	public void onNewIFrame(final JInternalFrame iFrame) {
+		if (atomicBlock != null) {
+			atomicBlock.add(iFrame);
+		} else {
+			UIUtil.invokeLater(12, new Runnable() {
+				@Override
+				public void run() {
+					StateChange stateChange = new StateChange();
+					stateChange.iFrame = iFrame;
+					stateChange.startTime = System.currentTimeMillis();
+					stateChanges.put(iFrame, stateChange);
+				}
+			});
+		}
+	}
+ 
+	public void onIFrameSelected(JInternalFrame iFrame) {
+		onIFrameSelected(iFrame, 0);
+	}
+
+	public void onIFrameSelected(final JInternalFrame iFrame, final double factorOffset) {
+		if (atomicBlock == null) {
+			UIUtil.invokeLater(12, new Runnable() {
+				@Override
+				public void run() {
+					if (!stateChanges.containsKey(iFrame)) {
+						StateChange stateChange = new StateChange();
+						stateChange.iFrame = iFrame;
+						stateChange.startTime = System.currentTimeMillis();
+						stateChange.factorOffset = factorOffset;
+						stateChanges.put(iFrame, stateChange);
+					}
+				}
+			});
+		}
+	}
+
+	public void render(Graphics2D g2d) {
+		for (Iterator<Entry<JInternalFrame, StateChange>> iter = stateChanges.entrySet().iterator(); iter.hasNext(); ) {
+			StateChange stateChange = iter.next().getValue();
+			
+			double factor = (System.currentTimeMillis() - stateChange.startTime) / DURATION;
+			factor += stateChange.factorOffset;
+			if (factor >= 1) {
+				iter.remove();
+				continue;
+			}
+			if (factor < 0) {
+				factor = 0;
+			}
+			
+			if (stateChange.iFrame.isVisible()) {
+				Color color = new Color(255, 255, 0, (int) (170 * (1 - factor)));
+				g2d.setColor(color);
+				g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
+				double width = stateChange.iFrame.getWidth() / 12 * ((factor - stateChange.factorOffset) / (1 - stateChange.factorOffset) + 0.1);
+				BasicStroke stroke = new BasicStroke((float) width, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);
+				g2d.setStroke(stroke);
+				
+				Rectangle rect = stateChange.iFrame.getBounds();
+				int w = (int) (0.5 * width);
+				rect = new Rectangle(rect.x + w / 2, rect.y + w / 2, rect.width - w, rect.height - w);
+				
+				Path2D.Double path = new Path2D.Double();
+				path.moveTo(rect.getX(), rect.getY());
+				path.lineTo(rect.getX() + rect.getWidth(), rect.getY());
+				path.lineTo(rect.getX() + rect.getWidth(), rect.getY() + rect.getHeight());
+				path.lineTo(rect.getX(), rect.getY() + rect.getHeight());
+				path.lineTo(rect.getX(), rect.getY());
+				
+				g2d.draw(path);
+			}
+		}		
+	}
+
+	public void startAtomic() {
+		atomicBlock = new ArrayList<JInternalFrame>();
+	}
+
+	public void endAtomic() {
+		if (atomicBlock != null) {
+			final List<JInternalFrame> iFrames = atomicBlock;
+			atomicBlock = null;
+			UIUtil.invokeLater(12, new Runnable() {
+				@Override
+				public void run() {
+					long currentTimeMillis = System.currentTimeMillis();
+					long offset = 0;
+					for (int i = iFrames.size() - 1; i >= 0; --i) {
+						JInternalFrame iFrame = iFrames.get(i);
+						StateChange stateChange = new StateChange();
+						stateChange.iFrame = iFrame;
+						stateChange.startTime = currentTimeMillis - offset;
+						stateChanges.put(iFrame, stateChange);
+						offset += DURATION / 3;
+					}
+				}
+			});
+		}
+	}
+
+	public void rollbackAtomic() {
+		atomicBlock = null;
+	}
+
+}

src/main/gui/net/sf/jailer/ui/databrowser/DetailsView.java

@@ -17,6 +17,7 @@ package net.sf.jailer.ui.databrowser;
 
 import java.awt.Color;
 import java.awt.Font;
+import java.awt.GridBagConstraints;
 import java.awt.GridBagLayout;
 import java.awt.event.KeyEvent;
 import java.awt.event.KeyListener;
@@ -40,6 +41,7 @@ import javax.swing.event.ChangeEvent;
 import javax.swing.event.ChangeListener;
 import javax.swing.table.TableModel;
 
+import net.sf.jailer.database.Session;
 import net.sf.jailer.datamodel.Column;
 import net.sf.jailer.datamodel.DataModel;
 import net.sf.jailer.datamodel.RowIdSupport;
@@ -61,18 +63,24 @@ public abstract class DetailsView extends javax.swing.JPanel {
 	private final RowSorter<? extends TableModel> rowSorter;
 	private final RowIdSupport rowIdSupport;
 	private final boolean showSpinner;
-	
+	private final Session session;
+
 	/** Creates new form DetailsView 
 	 * @param rowSorter 
 	 * @param showSelectButton 
+	 * @param deselect 
 	*/
-	public DetailsView(List<Row> rows, int size, DataModel dataModel, Table table, int rowIndex, RowSorter<? extends TableModel> rowSorter, boolean showSpinner, boolean showSelectButton, RowIdSupport rowIdSupport) {
+	public DetailsView(List<Row> rows, int size, DataModel dataModel, Table table, int rowIndex, RowSorter<? extends TableModel> rowSorter, boolean showSpinner, boolean showSelectButton, RowIdSupport rowIdSupport, boolean deselect, Session session) {
 		this.table = table;
 		this.rows = rows;
 		this.rowSorter = rowSorter;
 		this.rowIdSupport = rowIdSupport;
 		this.showSpinner = showSpinner;
+		this.session = session;
 		initComponents();
+		if (deselect) {
+			selectButton.setText("Deselect Row");
+		}
 		if (rowSorter != null) {
 			rowIndex = rowSorter.convertRowIndexToView(rowIndex);
 		}
@@ -125,8 +133,7 @@ public abstract class DetailsView extends javax.swing.JPanel {
 				@Override
 				public void ancestorAdded(AncestorEvent event) {
 					closeButton.grabFocus();
-					jScrollPane1.getVerticalScrollBar().setValue(jScrollPane1.getVerticalScrollBar().getMinimum());					
-					jScrollPane1.getHorizontalScrollBar().setValue(jScrollPane1.getHorizontalScrollBar().getMinimum());
+					resetScrollPane();
 				}
 			});
 		}
@@ -137,8 +144,12 @@ public abstract class DetailsView extends javax.swing.JPanel {
 	private final Font nonbold = new Font(font.getName(), font.getStyle() & ~Font.BOLD, font.getSize()); 
 	private final Font italic = new Font(font.getName(), font.getStyle() & ~Font.BOLD | Font.ITALIC, font.getSize()); 
 	private final Color BG1 = new Color(255, 255, 255);
-	private final Color BG2 = new Color(230, 255, 255);
+	private final Color BG2 = new Color(242, 255, 242);
+	private final Color BG3 = new Color(194, 228, 255);
+	private final Color BG3_2 = new Color(184, 220, 255);
 	private final Color FG1 = new Color(155, 0, 0);
+	private List<JLabel> labels = new ArrayList<JLabel>();
+	private List<Color> labelColors = new ArrayList<Color>();
 	
 	public void setBorderColor(Color color) {
 		jScrollPane1.setBorder(BorderFactory.createEtchedBorder(color, Color.GRAY));
@@ -147,13 +158,17 @@ public abstract class DetailsView extends javax.swing.JPanel {
 	private int currentRow;
 	private boolean sortColumns;
 	private JPanel content;
-	
+	private boolean isPacked = false;
+
 	private void setCurrentRow(int row, boolean selectableFields) {
 		currentRow = row;
 
 		java.awt.GridBagConstraints gridBagConstraints;
 		
-		JPanel oldContent = content;
+		labels.clear();
+		labelColors.clear();
+		
+		final JPanel oldContent = content;
 		content = new JPanel(new GridBagLayout());
 		gridBagConstraints = new java.awt.GridBagConstraints();
 		gridBagConstraints.weightx = 1;
@@ -163,7 +178,7 @@ public abstract class DetailsView extends javax.swing.JPanel {
 		gridBagConstraints.gridy = 0;
 		
 		int i = 0;
-		final List<Column> columns = rowIdSupport.getColumns(table);
+		final List<Column> columns = rowIdSupport.getColumns(table, session);
 		List<Integer> columnIndex = new ArrayList<Integer>();
 		for (int j = 0; j < columns.size(); ++j) {
 			columnIndex.add(j);
@@ -240,6 +255,8 @@ public abstract class DetailsView extends javax.swing.JPanel {
 				} else {
 					l.setForeground(Color.BLUE);
 				}
+				labelColors.add(f.getBackground());
+				labels.add(f);
 			}
 			++i;
 		}
@@ -255,12 +272,30 @@ public abstract class DetailsView extends javax.swing.JPanel {
 			gridBagConstraints.gridy = i;
 			content.add(l, gridBagConstraints);
 		}
-		jPanel1.add(content, gridBagConstraints);
-		if (oldContent != null) {
-			jPanel1.remove(oldContent);
+		Runnable update = new Runnable() {
+			@Override
+			public void run() {
+				if (oldContent != null) {
+					jPanel1.remove(oldContent);
+				}
+				GridBagConstraints gridBagConstraints = new java.awt.GridBagConstraints();
+				gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
+				gridBagConstraints.weightx = 1;
+				gridBagConstraints.weighty = 1;
+				gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
+				gridBagConstraints.gridx = 1;
+				gridBagConstraints.gridy = 1;
+				jPanel1.add(content, gridBagConstraints);
+				jPanel1.revalidate();
+				jPanel1.repaint();
+			}
+		};
+		if (isPacked) {
+			UIUtil.invokeLater(2, update);
+		} else {
+			update.run();
+			isPacked = true;
 		}
-		jPanel1.revalidate();
-		jPanel1.repaint();
 		onRowChanged(row);
 	}
 
@@ -354,6 +389,12 @@ public abstract class DetailsView extends javax.swing.JPanel {
     private void sortCheckBoxActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_sortCheckBoxActionPerformed
     	sortColumns = !sortColumns;
     	setCurrentRow(currentRow, showSpinner);
+    	UIUtil.invokeLater(4, new Runnable() {
+			@Override
+			public void run() {
+				resetScrollPane();
+			}
+		});
     }//GEN-LAST:event_sortCheckBoxActionPerformed
 
     private void closeButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_closeButtonActionPerformed
@@ -364,6 +405,22 @@ public abstract class DetailsView extends javax.swing.JPanel {
         onSelectRow(rows.get(rowSorter != null? rowSorter.convertRowIndexToModel(currentRow) : currentRow));
     }//GEN-LAST:event_selectButtonActionPerformed
 
+	public void updateInClosureState(boolean inClosure) {
+		if (inClosure) {
+			int r = 0;
+			for (JLabel label: labels) {
+				label.setBackground(r++ % 2 == 0? BG3 : BG3_2);
+			}
+		} else {
+			for (int i = 0; i < labels.size(); ++i) {
+				labels.get(i).setBackground(labelColors.get(i));
+			}
+		}
+	}
+    
+    public JPanel getDetailsPanel() {
+    	return jPanel1;
+    }
 
     // Variables declaration - do not modify//GEN-BEGIN:variables
     private javax.swing.JButton closeButton;
@@ -380,4 +437,9 @@ public abstract class DetailsView extends javax.swing.JPanel {
     	setCurrentRow(currentRow, showSpinner);
 	}
 
+	private void resetScrollPane() {
+		jScrollPane1.getVerticalScrollBar().setValue(jScrollPane1.getVerticalScrollBar().getMinimum());					
+		jScrollPane1.getHorizontalScrollBar().setValue(jScrollPane1.getHorizontalScrollBar().getMinimum());
+	}
+
 }

src/main/gui/net/sf/jailer/ui/databrowser/Row.java

@@ -32,13 +32,26 @@ public class Row {
 		this.rowId = rowId;
 		this.values = v;
 		this.primaryKey = primaryKey;
+		if (rowId.isEmpty()) {
+			synchronized (this) {
+				this.nonEmptyRowId = Long.toString(nextUniqueId++);
+			}
+		} else {
+			nonEmptyRowId = rowId;
+		}
 	}
 
 	/**
 	 * Unique ID, also serves as SQL predicate which identifies this row.
+	 * Empty string if row has no key.
 	 */
 	public final String rowId;
 	
+	/**
+	 * Unique ID. Equals rowId if it's not empty.
+	 */
+	public final String nonEmptyRowId;
+	
 	/**
 	 * Column values.
 	 */
@@ -68,4 +81,6 @@ public class Row {
 		this.parentModelIndex = parentModelIndex;
 	}
 
+	private static long nextUniqueId = 0;
+	
 }

src/main/gui/net/sf/jailer/ui/databrowser/SbEDialog.java

@@ -204,7 +204,6 @@ public class SbEDialog extends javax.swing.JDialog {
 	}//GEN-LAST:event_jButton3ActionPerformed
 
     private void regardButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_regardButtonActionPerformed
-        // TODO add your handling code here:
     }//GEN-LAST:event_regardButtonActionPerformed
 
     // Variables declaration - do not modify//GEN-BEGIN:variables

src/main/gui/net/sf/jailer/ui/databrowser/SchemaMappingDialog.java

@@ -15,7 +15,6 @@
  */
 package net.sf.jailer.ui.databrowser;
 
-import java.awt.Cursor;
 import java.awt.GridBagConstraints;
 import java.awt.Window;
 import java.io.File;
@@ -36,6 +35,7 @@ import net.sf.jailer.modelbuilder.JDBCMetaDataBasedModelElementFinder;
 import net.sf.jailer.ui.DbConnectionDialog;
 import net.sf.jailer.ui.Environment;
 import net.sf.jailer.ui.JComboBox;
+import net.sf.jailer.ui.UIUtil;
 
 /**
  * Schema Mapping Dialog.
@@ -58,7 +58,7 @@ public class SchemaMappingDialog extends javax.swing.JDialog {
 		Window windowAncestor = parent; // SwingUtilities.getWindowAncestor(parent);
 		try {
 			if (windowAncestor != null) {
-				windowAncestor.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
+				UIUtil.setWaitCursor(windowAncestor);
 			}
 			String defSchema = JDBCMetaDataBasedModelElementFinder.getDefaultSchema(session, session.getSchema());
 			if (!defSchema.isEmpty()) {
@@ -108,7 +108,7 @@ public class SchemaMappingDialog extends javax.swing.JDialog {
 			}
 		} finally {
 			if (windowAncestor != null) {
-				windowAncestor.setCursor(Cursor.getDefaultCursor());
+				UIUtil.resetWaitCursor(windowAncestor);
 			}
 		}
 		pack();

src/main/gui/net/sf/jailer/ui/databrowser/TreeLayoutOptimizer.java

@@ -29,6 +29,7 @@ public class TreeLayoutOptimizer<T> {
 	public static class Node<T> {
 		private final T userObject;
 		private final List<Node<T>> children = new ArrayList<Node<T>>();
+		private final boolean isAnchor;
 		int level = 0;
 		Node<T> parent = null;
 		double position = 0;
@@ -37,8 +38,9 @@ public class TreeLayoutOptimizer<T> {
 			return userObject;
 		}
 		
-		public Node(T userObject) {
+		public Node(T userObject, boolean isAnchor) {
 			this.userObject = userObject;
+			this.isAnchor = isAnchor;
 		}
 		
 		public void addChild(Node<T> child) {
@@ -67,6 +69,21 @@ public class TreeLayoutOptimizer<T> {
 			return 1 + maxChildDepth;
 		}
 
+		public double getMinPosition() {
+			double minPos = position;
+			for (Node<T> child: children) {
+				minPos = Math.min(minPos, child.getMinPosition());
+			}
+			return minPos;
+		}
+
+		public void adjustPosition(double delta) {
+			position -= delta;
+			for (Node<T> child: children) {
+				child.adjustPosition(delta);
+			}
+		}
+
 		public int getNodesCount() {
 			int count = 1;
 			for (Node<T> child: children) {
@@ -77,15 +94,36 @@ public class TreeLayoutOptimizer<T> {
 
 		public double getCompactness() {
 			double compactness = 0;
-			if (children.size() > 1) {
+			if (children.size() > 0) {
 				compactness = children.get(children.size() - 1).position - children.get(0).position;
 				compactness *= compactness;
+				Node<T> pre = null;
 				for (Node<T> child: children) {
 					compactness += child.getCompactness();
+					if (pre != null) {
+						if (pre.position + 1 > child.position) {
+							double w = pre.position + 1 - child.position;
+							compactness += w * w * 1000;
+						}
+					}
+					pre = child;
 				}
 			}
 			return compactness;
 		}
+
+		public double getAnchorQuality() {
+			double quality = 0;
+			for (Node<T> child: children) {
+				quality += child.getAnchorQuality();
+			}
+
+			if (isAnchor && parent != null) {
+				double d = parent.position - position;
+				quality += d * d;
+			}
+			return quality;
+		}
 	};
 
 	public static <T> void optimizeTreeLayout(Node<T> root) {
@@ -93,6 +131,7 @@ public class TreeLayoutOptimizer<T> {
 		optimizeChildrenOrder(root, System.currentTimeMillis(), MAX_OPTIM_TIME_MS, numNodes);
 		layoutTree(root, numNodes);
 		optimizeLeafs(root);
+		root.adjustPosition(root.getMinPosition());
 	}
 	
 	private static long MAX_OPTIM_TIME_MS = 1000;
@@ -111,7 +150,7 @@ public class TreeLayoutOptimizer<T> {
 				sumMaxPositionSqr += maxPositionPerLevel[i] * maxPositionPerLevel[i];
 			}
 		}
-		return sumMaxPositionSqr / numNodes + root.getCompactness();
+		return sumMaxPositionSqr / numNodes + root.getCompactness() + root.getAnchorQuality();
 	}
 	
 	private static <T> void layoutNode(Node<T> node, double[] maxPositionPerLevel) {
@@ -125,18 +164,31 @@ public class TreeLayoutOptimizer<T> {
 	
 	private static <T> void adjustParentPosition(Node<T> node, double[] maxPositionPerLevel) {
 		while (node != null) {
-			double parentPos = node.children.get(0).position + (maxPositionPerLevel[node.level + 1] - node.children.get(0).position) / 2.0;
-			if (node.position < parentPos) {
-				node.position = parentPos;
-				// node.position = (node.position + parentPos) / 2.0;
-				maxPositionPerLevel[node.level] = parentPos;
+			Node<T> anchorChild = null;
+			if (node.isAnchor) {
+				for (Node<T> child: node.children) {
+					if (child.isAnchor) {
+						anchorChild = child;
+						break;
+					}
+				}
+			}
+			if (anchorChild != null) {
+				node.position = anchorChild.position;
 			} else {
-				break;
+				double parentPos = node.children.get(0).position + (maxPositionPerLevel[node.level + 1] - node.children.get(0).position) / 2.0;
+				if (node.position < parentPos) {
+					node.position = parentPos;
+					// node.position = (node.position + parentPos) / 2.0;
+					maxPositionPerLevel[node.level] = parentPos;
+				} else {
+					break;
+				}
 			}
 			node = node.parent;
 		}
 	}
-	
+
 	private static <T> void optimizeLeafs(Node<T> node) {
 		if (node.children.isEmpty() && node.parent != null && node.position < node.parent.position) {
 			int i = node.parent.children.indexOf(node);

src/main/gui/net/sf/jailer/ui/databrowser/metadata/MDSchema.java

@@ -36,6 +36,7 @@ import javax.swing.ImageIcon;
 
 import org.apache.log4j.Logger;
 
+import net.sf.jailer.database.Session.AbstractResultSetReader;
 import net.sf.jailer.modelbuilder.MemorizedResultSet;
 import net.sf.jailer.ui.UIUtil;
 import net.sf.jailer.util.Quoting;
@@ -148,6 +149,7 @@ public class MDSchema extends MDObject {
 			if (tables == null) {
 				try {
 					tables = new ArrayList<MDTable>();
+					Map<String, Long> estimatedRowCounts = readEstimatedRowCounts();
 					MetaDataSource metaDataSource = getMetaDataSource();
 					synchronized (metaDataSource.getSession().getMetaData()) {
 						ResultSet rs = metaDataSource.readTables(getName());
@@ -156,7 +158,8 @@ public class MDSchema extends MDObject {
 							String tableName = metaDataSource.getQuoting().quote(rs.getString(3));
 							final MDTable table = new MDTable(tableName, this, "VIEW".equalsIgnoreCase(rs.getString(4)),
 									"SYNONYM".equalsIgnoreCase(rs.getString(4))
-											|| "ALIAS".equalsIgnoreCase(rs.getString(4)));
+								 || "ALIAS".equalsIgnoreCase(rs.getString(4)), 
+								 	estimatedRowCounts.get(rs.getString(3)));
 							tables.add(table);
 							if (loadTableColumns) {
 								loadJobs.put(tableName, new Runnable() {
@@ -194,6 +197,30 @@ public class MDSchema extends MDObject {
 		}
 	}
 
+	private Map<String, Long> readEstimatedRowCounts() {
+		final Map<String, Long> result = new HashMap<String, Long>();
+		
+		String query = getMetaDataSource().getSession().dbms.getEstimatedRowCountQuery();
+		if (query != null) {
+			try {
+				getMetaDataSource().getSession().executeQuery(String.format(query, getUnquotedName()), new AbstractResultSetReader() {
+					@Override
+					public void readCurrentRow(ResultSet resultSet) throws SQLException {
+						String tableName = resultSet.getString(1);
+						long rowCount = resultSet.getLong(2);
+						if (!resultSet.wasNull() && rowCount >= 0) {
+							result.put(tableName, rowCount);
+						}
+					}
+				});
+			} catch (SQLException e) {
+				// ignore
+			}
+		}
+		
+		return result;
+	}
+
 	/**
 	 * Have the tables of the schema been loaded?
 	 */

src/main/gui/net/sf/jailer/ui/databrowser/metadata/MDTable.java

@@ -15,7 +15,6 @@
  */
 package net.sf.jailer.ui.databrowser.metadata;
 
-import java.awt.Cursor;
 import java.sql.CallableStatement;
 import java.sql.Connection;
 import java.sql.DatabaseMetaData;
@@ -42,6 +41,7 @@ import net.sf.jailer.database.Session;
 import net.sf.jailer.datamodel.Column;
 import net.sf.jailer.datamodel.Table;
 import net.sf.jailer.modelbuilder.JDBCMetaDataBasedModelElementFinder;
+import net.sf.jailer.ui.UIUtil;
 import net.sf.jailer.util.Quoting;
 import net.sf.jailer.util.SqlUtil;
 
@@ -67,6 +67,8 @@ public class MDTable extends MDObject {
     private final boolean isView;
     private final boolean isSynonym;
 
+    public final Long estimatedRowCount;
+
     // DDL of the table or <code>null</code>, if no DDL is available
     private String ddl;
     
@@ -76,11 +78,12 @@ public class MDTable extends MDObject {
      * @param name table name
      * @param schema the tables schema
      */
-    public MDTable(String name, MDSchema schema, boolean isView, boolean isSynonym) {
+    public MDTable(String name, MDSchema schema, boolean isView, boolean isSynonym, Long estimatedRowCount) {
         super(name, schema.getMetaDataSource());
         this.isView = isView;
         this.isSynonym = isSynonym;
         this.schema = schema;
+        this.estimatedRowCount = estimatedRowCount;
     }
 
     /**
@@ -111,7 +114,7 @@ public class MDTable extends MDObject {
         if (isLoaded()) {
             return getColumns();
         }
-        waitCursorSubject.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
+        UIUtil.setWaitCursor(waitCursorSubject);
         try {
             loading.set(true);
             queue.add(new Runnable() {
@@ -132,7 +135,7 @@ public class MDTable extends MDObject {
                 }
             }
         } finally {
-            waitCursorSubject.setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
+        	UIUtil.resetWaitCursor(waitCursorSubject);
         }
         if (loading.get()) {
             return new ArrayList<String>();
@@ -159,7 +162,7 @@ public class MDTable extends MDObject {
                 MetaDataSource metaDataSource = getMetaDataSource();
                 synchronized (metaDataSource.getSession().getMetaData()) {
                     ResultSet resultSet = JDBCMetaDataBasedModelElementFinder.getColumns(getSchema().getMetaDataSource().getSession(), getSchema().getMetaDataSource().getSession().getMetaData(), Quoting.staticUnquote(getSchema().getName()), Quoting.staticUnquote(getName()), "%", 
-                    		true);
+                    		true, isSynonym? "SYNONYM" : null);
                     while (resultSet.next()) {
                         String colName = metaDataSource.getQuoting().quote(resultSet.getString(4));
                         columns.add(colName);
@@ -208,7 +211,23 @@ public class MDTable extends MDObject {
                         }
                         pk.put(keySeq, metaDataSource.getQuoting().quote(resultSet.getString(4)));
                     }
-                    primaryKey.addAll(pk.values());
+                    if (pk.isEmpty()) {
+                    	Table table = metaDataSource.toTable(this);
+                    	if (table != null) {
+                    		if (table.primaryKey != null) {
+                    			for (Column c: table.primaryKey.getColumns()) {
+                    				for (String mc: columns) {
+                    					if (Quoting.equalsIgnoreQuotingAndCase(c.name, mc)) {
+                    						primaryKey.add(mc);
+                    						break;
+                    					}
+                    				}
+                    			}
+                    		}
+                    	}
+                    } else {
+                    	primaryKey.addAll(pk.values());
+                    }
                     resultSet.close();
                 }
             } finally {
@@ -327,6 +346,22 @@ public class MDTable extends MDObject {
                     }
                 }
             }
+            if (ddl == null && isView) {
+            	String viewTextOrDDLQuery = session.dbms.getViewTextOrDDLQuery();
+    			if (viewTextOrDDLQuery != null) {
+    				String viewTextQuery = String.format(viewTextOrDDLQuery, Quoting.staticUnquote(getSchema().getName()), Quoting.staticUnquote(getName()));
+    				try {
+    					session.executeQuery(viewTextQuery, new Session.AbstractResultSetReader() {
+    						@Override
+    						public void readCurrentRow(ResultSet resultSet) throws SQLException {
+    							ddl = resultSet.getString(1);
+    						}
+    					});
+    				} catch (Exception e) {
+    					// ignore
+    				}
+    			}
+            }
             if (ddl == null) {
                 try {
                 	ddl = createDDL();

src/main/gui/net/sf/jailer/ui/databrowser/metadata/MetaDataDetails.java

@@ -39,7 +39,7 @@ public enum MetaDataDetails {
 	COLUMNS("Columns", 0) {
 		@Override
 		public ResultSet readMetaDataDetails(Session session, MDTable mdTable) throws SQLException {
-			return JDBCMetaDataBasedModelElementFinder.getColumns(session, session.getMetaData(), Quoting.staticUnquote(mdTable.getSchema().getName()), Quoting.staticUnquote(mdTable.getName()), "%", true);
+			return JDBCMetaDataBasedModelElementFinder.getColumns(session, session.getMetaData(), Quoting.staticUnquote(mdTable.getSchema().getName()), Quoting.staticUnquote(mdTable.getName()), "%", true, mdTable.isSynonym()? "SYNONYM" : null);
 		}
 		@Override
 		public void adjustRowsTable(JTable rowsTable) {

src/main/gui/net/sf/jailer/ui/databrowser/metadata/MetaDataDetailsPanel.java

@@ -226,11 +226,16 @@ public abstract class MetaDataDetailsPanel extends javax.swing.JPanel {
 		    	final int tableNameColumnIndex = 3;
 		    	final Set<String> pkNames = Collections.synchronizedSet(new HashSet<String>());
 		    	final BrowserContentPane rb = new BrowserContentPane(datamodel.get(), null, "", session, null, null,
-						null, null, new BrowserContentPane.RowsClosure(), 0, false, false, executionContext) {
+						null, null, new BrowserContentPane.RowsClosure(), false, false, executionContext) {
 		    		{
 		    			noSingleRowDetailsView = true;
 		    			rowsTableScrollPane.setWheelScrollingEnabled(true);
 		    		}
+		    		@Override
+		    		protected int getReloadLimit() {
+		    			return Integer.MAX_VALUE;
+		    		}
+
 		    		@Override
 					protected void unhide() {
 					}
@@ -257,7 +262,8 @@ public abstract class MetaDataDetailsPanel extends javax.swing.JPanel {
 					protected void onContentChange(List<Row> rows, boolean reloadChildren) {
 					}
 					@Override
-					protected void navigateTo(Association association, int rowIndex, Row row) {
+					protected RowBrowser navigateTo(Association association, int rowIndex, Row row) {
+						return null;
 					}
 					@Override
 					protected List<RowBrowser> getTableBrowser() {
@@ -338,6 +344,9 @@ public abstract class MetaDataDetailsPanel extends javax.swing.JPanel {
 					protected SQLConsole getSqlConsole(boolean switchToConsole) {
 						return null;
 					}
+					@Override
+					protected void deselectChildrenIfNeededWithoutReload() {
+					}
 				};
 		    	
 				final MemorizedResultSet[] metaDataDetails = new MemorizedResultSet[1];
@@ -357,7 +366,7 @@ public abstract class MetaDataDetailsPanel extends javax.swing.JPanel {
 					    		rs.close();
 				    		}
 						} catch (SQLException e) {
-							logger.info("error", e);
+							// ignore
 						}
 			    		SwingUtilities.invokeLater(new Runnable() {
 							@Override

src/main/gui/net/sf/jailer/ui/databrowser/metadata/MetaDataPanel.java

@@ -17,7 +17,6 @@ package net.sf.jailer.ui.databrowser.metadata;
 
 import java.awt.Color;
 import java.awt.Component;
-import java.awt.Cursor;
 import java.awt.Dimension;
 import java.awt.FlowLayout;
 import java.awt.Font;
@@ -699,7 +698,7 @@ public abstract class MetaDataPanel extends javax.swing.JPanel {
                             popup.add(menu);
                             ++itemCount;
                             menu.add(createScriptMenuItem("Delete Script", "Delete from %1$s;", "", mdTables, false));
-                            menu.add(createScriptMenuItem("Drop Table Script", "Drop Table %1$s;", "", mdTables, false));
+                            menu.add(createScriptMenuItem("Drop Table Script", "Drop %2$s %1$s;", "", mdTables, false));
                             menu.addSeparator();
                             menu.add(createScriptMenuItem("Count Rows Script", "Select '%1$s' as Tab, count(*) as NumberOfRows From %1$s", " union all", mdTables, true));
                         }
@@ -709,7 +708,9 @@ public abstract class MetaDataPanel extends javax.swing.JPanel {
                 if (evt.getButton() == MouseEvent.BUTTON1) {
                     if (mdTable != null) {
                         if (evt.getClickCount() > 1) {
-                            openTable(mdTable);
+                        	if (node != null && metaDataTree.getSelectionModel().isPathSelected(node)) {
+                        		openTable(mdTable);
+                        	}
                         }
                     }
                 }
@@ -725,12 +726,19 @@ public abstract class MetaDataPanel extends javax.swing.JPanel {
                     			script.append(separator + "\n");
                     		}
                     		String tableName;
+                    		String tableType = "Table";
+                    		if (mdTable.isView()) {
+                    			tableType = "View";
+                    		}
+                    		if (mdTable.isSynonym()) {
+                    			tableType = "Synonym";
+                    		}
                     		if (mdTable.getSchema().isDefaultSchema) {
                     			tableName = mdTable.getName();
                     		} else {
                     			tableName = mdTable.getSchema() + "." + mdTable.getName();
                     		}
-                    		script.append(String.format(template, tableName));
+							script.append(String.format(template, tableName, tableType));
                     	}
             			script.append("\n");
 						appendScript(script.toString(), execute);
@@ -815,6 +823,7 @@ public abstract class MetaDataPanel extends javax.swing.JPanel {
                 boolean isSynonym = false;
                 Boolean isDirty = false;
                 Icon image = null;
+        		Long estRowCount = null;
                 if (value instanceof DefaultMutableTreeNode) {
                     Object uo = ((DefaultMutableTreeNode) value).getUserObject();
                     if (uo instanceof JLabel) {
@@ -851,11 +860,11 @@ public abstract class MetaDataPanel extends javax.swing.JPanel {
                                 }
                             }
                         }
-                        if (ModelBuilder.isJailerTable(((MDTable) uo).getUnquotedName())) {
-                            isJailerTable = true;
-                        }
                         isView = ((MDTable) uo).isView();
                         isSynonym = ((MDTable) uo).isSynonym();
+                        if (!isView) {
+                        	estRowCount = ((MDTable) uo).estimatedRowCount;
+                        }
                         if (isView) {
                         	image = viewIcon;
                         } else if (isSynonym) {
@@ -863,6 +872,9 @@ public abstract class MetaDataPanel extends javax.swing.JPanel {
                         } else {
                         	image = tableIcon;
                         }
+                        if (ModelBuilder.isJailerTable(((MDTable) uo).getUnquotedName())) {
+                            isJailerTable = true;
+                        }
                     }
                 }
                 Component comp = super.getTreeCellRendererComponent(tree, value + (unknownTable? "" : (isDirty? " !" : "  ")), sel, expanded, leaf, row, hasFocus);
@@ -874,13 +886,29 @@ public abstract class MetaDataPanel extends javax.swing.JPanel {
             			// TODO tooltips dont work with tree nodes
             			tooltip = text;
             		}
+            		if (estRowCount != null) {
+            			Color fg = ((JLabel) comp).getForeground();
+            			String estRowCountFormatted;
+            			if (estRowCount >= 1000000) {
+            				estRowCountFormatted = String.format("%1.1f M", (double) estRowCount / 1000000.0);
+            			} else if (estRowCount >= 1000) {
+            				estRowCountFormatted = String.format("%1.1f K", (double) estRowCount / 1000.0);
+            			} else {
+            				estRowCountFormatted = estRowCount.toString();
+            			}
+						if (fg.getRed() + fg.getGreen() + fg.getBlue() < 255 * 3 / 2) {
+            				((JLabel) comp).setText("<html>" + text + "&nbsp;<font color=\"#7777ff\">(~</font><font color=\"#3333ff\">" + estRowCountFormatted + "</font><font color=\"#7777ff\">)</font>");
+            			} else {
+            				((JLabel) comp).setText("<html>" + text + "&nbsp;<font color=\"#aaaaff\">(~</font><font color=\"#eeeeff\">" + estRowCountFormatted + "</font><font color=\"#aaaaff\">)</font>");
+            			}
+            		}
             	}	
                 Font font = comp.getFont();
                 if (font != null) {
                     Font bold = new Font(font.getName(), unknownTable || isDirty? (font.getStyle() | Font.ITALIC) : (font.getStyle() & ~Font.ITALIC), font.getSize());
                     comp.setFont(bold);
                 }
-                if (isJailerTable) {
+                if (isJailerTable && !sel) {
                     comp.setEnabled(false);
                 }
                 if (image != null) {
@@ -941,7 +969,7 @@ public abstract class MetaDataPanel extends javax.swing.JPanel {
                                         SwingUtilities.invokeLater(new Runnable() {
                                             @Override
                                             public void run() {
-                                            	setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
+                                            	UIUtil.setWaitCursor(MetaDataPanel.this);
                                         	    try {
 					                                if (metaDataTree.getSelectionPath() != null && metaDataTree.getSelectionPath().getLastPathComponent() == last) {
 					                                    if (uo instanceof MDSchema) {
@@ -961,7 +989,7 @@ public abstract class MetaDataPanel extends javax.swing.JPanel {
 					                                    }
 					                                }
                                         	    } finally {
-                                        	    	setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
+                                        	    	UIUtil.resetWaitCursor(MetaDataPanel.this);
                                         	    }
                                             }
                                         });
@@ -1040,7 +1068,7 @@ public abstract class MetaDataPanel extends javax.swing.JPanel {
     }
 
     public void reset() {
-        refreshButton.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
+    	UIUtil.setWaitCursor(refreshButton);
         JDBCMetaDataBasedModelElementFinder.resetCaches(metaDataSource.getSession());
         setOutline(new ArrayList<OutlineInfo>(), -1);
         proceduresPerSchema.clear();
@@ -1071,7 +1099,7 @@ public abstract class MetaDataPanel extends javax.swing.JPanel {
                         }
                     }
                 } finally {
-                    refreshButton.setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
+                	UIUtil.resetWaitCursor(refreshButton);
                 }
             }
         });
@@ -1100,7 +1128,7 @@ public abstract class MetaDataPanel extends javax.swing.JPanel {
         if (bounds != null) {
         	int b = 18;
         	bounds = new Rectangle(bounds.x, Math.max(bounds.y - b, 0), bounds.width, bounds.height + 2 * b);
-            metaDataTree.scrollRectToVisible(new Rectangle(bounds.x, bounds.y, 1, bounds.height));
+            metaDataTree.scrollRectToVisible(new Rectangle(0, bounds.y, 1, bounds.height));
         }
     }
 
@@ -1200,12 +1228,7 @@ public abstract class MetaDataPanel extends javax.swing.JPanel {
         }
         DefaultTreeModel treeModel = new DefaultTreeModel(root);
         metaDataTree.setModel(treeModel);
- 		SwingUtilities.invokeLater(new Runnable() {
-			@Override
-			public void run() {
-				metaDataTree.scrollRectToVisible(new Rectangle(0, 0, 1, 1));
-		 	}
-		});
+		metaDataTree.scrollRectToVisible(new Rectangle(0, 0, 1, 1));
         selectSchema(metaDataSource.getDefaultSchema());
     }
 
@@ -1262,10 +1285,10 @@ public abstract class MetaDataPanel extends javax.swing.JPanel {
 								            @Override
 								            public void run() {
 								                try {
-								                    setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
+								                	UIUtil.setWaitCursor(MetaDataPanel.this);
 								                    expandImmediatelly();
 								                } finally {
-								                    setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
+								                	UIUtil.resetWaitCursor(MetaDataPanel.this);
 								                }
 								            }
 								        });
@@ -1290,11 +1313,16 @@ public abstract class MetaDataPanel extends javax.swing.JPanel {
         if (mdSchema != null) {
             DefaultMutableTreeNode node = treeNodePerSchema.get(mdSchema);
             if (node != null) {
-            	TreePath path = new TreePath(node.getPath());
+            	final TreePath path = new TreePath(node.getPath());
                 metaDataTree.expandPath(path);
                 metaDataTree.getSelectionModel().setSelectionPath(path);
                 if (scrollToNode) {
-                    scrollToNode(path);
+                	SwingUtilities.invokeLater(new Runnable() {
+						@Override
+						public void run() {
+							scrollToNode(path);
+						}
+                	});
                 }
             }
         }

src/main/gui/net/sf/jailer/ui/databrowser/metadata/ResultSetRenderer.java

@@ -34,6 +34,7 @@ import net.sf.jailer.database.Session;
 import net.sf.jailer.datamodel.Association;
 import net.sf.jailer.datamodel.DataModel;
 import net.sf.jailer.datamodel.Table;
+import net.sf.jailer.modelbuilder.MemorizedResultSet;
 import net.sf.jailer.ui.DbConnectionDialog;
 import net.sf.jailer.ui.QueryBuilderDialog;
 import net.sf.jailer.ui.QueryBuilderDialog.Relationship;
@@ -59,13 +60,23 @@ public class ResultSetRenderer extends javax.swing.JPanel {
      */
     public ResultSetRenderer(ResultSet resultSet, String titel, DataModel datamodel, Session session, ExecutionContext executionContext) throws SQLException {
         initComponents();
-        titelLabel.setText(titel);
+        if (titel != null && titel.length() > 40) {
+            titelLabel.setText(titel.substring(0, 40) + "...");
+        	titelLabel.setToolTipText(titel);
+        } else {
+        	titelLabel.setText(titel);
+        	titelLabel.setToolTipText(null);
+        }
         
 		final BrowserContentPane rb = new ResultContentPane(datamodel, null, "", session, null, null,
                 null, null, new RowsClosure(), Integer.MAX_VALUE, false, false,
                 resultSet.getMetaData().getColumnCount() > 1? 180 : 400,
                 executionContext);
-		rb.setTableFilterEnabled(false);
+		if (resultSet instanceof MemorizedResultSet && ((MemorizedResultSet) resultSet).getSize() > 1) {
+			rb.setTableFilterEnabled(true);
+		} else {
+			rb.setTableFilterEnabled(false);
+		}
         LoadJob loadJob = rb.newLoadJob(resultSet, Integer.MAX_VALUE);
         loadJob.run();
         JComponent rTabContainer = rb.getRowsTableContainer();
@@ -122,16 +133,25 @@ public class ResultSetRenderer extends javax.swing.JPanel {
     private javax.swing.JLabel titelLabel;
     // End of variables declaration//GEN-END:variables
     class ResultContentPane extends BrowserContentPane {
-        public ResultContentPane(DataModel dataModel, Table table, String condition, Session session, Row parentRow,
+    	private final Integer limit;
+    	public ResultContentPane(DataModel dataModel, Table table, String condition, Session session, Row parentRow,
                 List<Row> parentRows, Association association, Frame parentFrame,
                 RowsClosure rowsClosure, Integer limit, Boolean selectDistinct,
                 boolean reload, int maxColumnWidth, ExecutionContext executionContext) {
             super(dataModel, table, condition, session, parentRow, parentRows, association, parentFrame, 
-            		rowsClosure, limit, selectDistinct, reload, executionContext);
+            		rowsClosure, selectDistinct, reload, executionContext);
             singleRowDetailsViewTitel = "Details";
             this.maxColumnWidth = maxColumnWidth;
+            this.limit = limit;
             rowsTableScrollPane.setWheelScrollingEnabled(true);
             rowsCount.setVisible(false);
+    	}
+        @Override
+        protected int getReloadLimit() {
+        	if (limit == null) {
+        		return Integer.MAX_VALUE;
+        	}
+        	return limit;
         }
         @Override
         protected void unhide() {
@@ -159,7 +179,8 @@ public class ResultSetRenderer extends javax.swing.JPanel {
         protected void onContentChange(List<Row> rows, boolean reloadChildren) {
         }
         @Override
-        protected void navigateTo(Association association, int rowIndex, Row row) {
+        protected RowBrowser navigateTo(Association association, int rowIndex, Row row) {
+        	return null;
         }
         @Override
         protected List<RowBrowser> getTableBrowser() {
@@ -240,6 +261,9 @@ public class ResultSetRenderer extends javax.swing.JPanel {
         protected SQLConsole getSqlConsole(boolean switchToConsole) {
             return null;
         }
+		@Override
+		protected void deselectChildrenIfNeededWithoutReload() {
+		}
     };
 
 }

src/main/gui/net/sf/jailer/ui/databrowser/sqlconsole/AbstractExpressionVisitor.java

@@ -47,11 +47,13 @@ import net.sf.jsqlparser.expression.TimeKeyExpression;
 import net.sf.jsqlparser.expression.TimeValue;
 import net.sf.jsqlparser.expression.TimestampValue;
 import net.sf.jsqlparser.expression.UserVariable;
+import net.sf.jsqlparser.expression.ValueListExpression;
 import net.sf.jsqlparser.expression.WhenClause;
-import net.sf.jsqlparser.expression.WithinGroupExpression;
 import net.sf.jsqlparser.expression.operators.arithmetic.Addition;
 import net.sf.jsqlparser.expression.operators.arithmetic.BitwiseAnd;
+import net.sf.jsqlparser.expression.operators.arithmetic.BitwiseLeftShift;
 import net.sf.jsqlparser.expression.operators.arithmetic.BitwiseOr;
+import net.sf.jsqlparser.expression.operators.arithmetic.BitwiseRightShift;
 import net.sf.jsqlparser.expression.operators.arithmetic.BitwiseXor;
 import net.sf.jsqlparser.expression.operators.arithmetic.Concat;
 import net.sf.jsqlparser.expression.operators.arithmetic.Division;
@@ -305,11 +307,6 @@ class AbstractExpressionVisitor implements ExpressionVisitor {
 
 	}
 
-	@Override
-	public void visit(WithinGroupExpression arg0) {
-
-	}
-
 	@Override
 	public void visit(ExtractExpression arg0) {
 
@@ -389,4 +386,19 @@ class AbstractExpressionVisitor implements ExpressionVisitor {
 	public void visit(NotExpression arg0) {
 
 	}
+
+	@Override
+	public void visit(BitwiseRightShift arg0) {
+		
+	}
+
+	@Override
+	public void visit(BitwiseLeftShift arg0) {
+		
+	}
+
+	@Override
+	public void visit(ValueListExpression arg0) {
+		
+	}
 }

src/main/gui/net/sf/jailer/ui/databrowser/sqlconsole/ColumnsTable.java

@@ -18,6 +18,7 @@ package net.sf.jailer.ui.databrowser.sqlconsole;
 import java.awt.Color;
 import java.awt.Component;
 import java.awt.Font;
+import java.awt.Point;
 import java.awt.Rectangle;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
@@ -38,14 +39,18 @@ import javax.swing.JTable;
 import javax.swing.KeyStroke;
 import javax.swing.ListSelectionModel;
 import javax.swing.RowSorter;
+import javax.swing.SwingUtilities;
 import javax.swing.table.DefaultTableCellRenderer;
 import javax.swing.table.DefaultTableModel;
+import javax.swing.table.TableCellEditor;
 import javax.swing.table.TableCellRenderer;
 import javax.swing.table.TableColumn;
 import javax.swing.table.TableColumnModel;
 import javax.swing.table.TableModel;
 
 import net.sf.jailer.ui.UIUtil;
+import net.sf.jailer.ui.databrowser.BrowserContentPane;
+import net.sf.jailer.ui.databrowser.Row;
 
 /**
  * "Column view" of a query result table.
@@ -56,10 +61,13 @@ public class ColumnsTable extends JTable {
 
 	private final int MAX_ROWS = 198;
 	private static final KeyStroke KS_COPY_TO_CLIPBOARD = KeyStroke.getKeyStroke(KeyEvent.VK_C, InputEvent.CTRL_DOWN_MASK);
+	final BrowserContentPane rb;
+	
+	public ColumnsTable(final BrowserContentPane rb) {
+		this.rb = rb;
+		final JTable rowsTable = rb.rowsTable;
 
-	public ColumnsTable(final JTable rowsTable) {
-		TableModel rDm = rowsTable.getModel();
-		RowSorter<? extends TableModel> sorter = rowsTable.getRowSorter();
+		final RowSorter<? extends TableModel> sorter = rowsTable.getRowSorter();
 		Vector cNames = new Vector();
 		cNames.add("Column");
 		for (int i = 0; i < sorter.getViewRowCount(); ++i) {
@@ -69,31 +77,57 @@ public class ColumnsTable extends JTable {
 			}
 			cNames.add("Row " + (i + 1));
 		}
-		DefaultTableModel cDm = new DefaultTableModel(cNames, rDm.getColumnCount()) {
+		final TableColumnModel cm = rowsTable.getColumnModel();
+		TableModel cDm = new DefaultTableModel(cNames, rowsTable.getModel().getColumnCount()) {
+			
 			@Override
-			public boolean isCellEditable(int row, int column) {
-				return false;
+			public boolean isCellEditable(int rowIndex, int columnIndex) {
+				if (columnIndex == 0) {
+					return false;
+				}
+				int row = rowsTable.getRowSorter().convertRowIndexToModel(columnIndex - 1);
+				int column = cm.getColumn(rowIndex).getModelIndex();
+				return rowsTable.getModel().isCellEditable(row, column);
+			}
+			
+			@Override
+			public Object getValueAt(int rowIndex, int columnIndex) {
+				int column = cm.getColumn(rowIndex).getModelIndex();
+				if (columnIndex == 0) {
+					return rowsTable.getModel().getColumnName(column);
+				}
+				int row = rowsTable.getRowSorter().convertRowIndexToModel(columnIndex - 1);
+				return rowsTable.getModel().getValueAt(row, column);
+			}
+			
+			@Override
+			public void setValueAt(Object value, int rowIndex, int columnIndex) {
+				if (columnIndex == 0) {
+					return;
+				}
+				int row = rowsTable.getRowSorter().convertRowIndexToModel(columnIndex - 1);
+				int column = cm.getColumn(rowIndex).getModelIndex();
+				rowsTable.getModel().setValueAt(value, row, column);
 			}
 		};
-		TableColumnModel cm = rowsTable.getColumnModel();
-		for (int x = 0; x < rDm.getColumnCount(); ++x) {
-			int mx = cm.getColumn(x).getModelIndex();
-			cDm.setValueAt(rDm.getColumnName(mx), x, 0);
-			for (int y = 0; y < sorter.getViewRowCount(); ++y) {
-				cDm.setValueAt(rDm.getValueAt(sorter.convertRowIndexToModel(y), mx), x, y + 1);
-				if (y > MAX_ROWS) {
-					break;
-				}
-			}
-		}
+
 		setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
 		setRowSelectionAllowed(true);
 		setColumnSelectionAllowed(true);
 		setCellSelectionEnabled(true);
+		// getTableHeader().setReorderingAllowed(false);
 		setShowGrid(false);
 		setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
 		setModel(cDm);
 		
+		for (int i = 0; i < getColumnCount(); i++) {
+			TableCellEditor defaultEditor = rowsTable.getDefaultEditor(getColumnClass(i));
+			if (defaultEditor != null) {
+				defaultEditor.cancelCellEditing();
+			}
+			setDefaultEditor(getColumnClass(i), defaultEditor);
+		}
+
 		InputMap im = getInputMap();
 		Object key = "copyClipboard";
 		im.put(KS_COPY_TO_CLIPBOARD, key);
@@ -115,14 +149,23 @@ public class ColumnsTable extends JTable {
 			public void mousePressed(MouseEvent e) {
 				int ri = rowAtPoint(e.getPoint());
 				if (ri >= 0) {
-						Rectangle r = getCellRect(ri, 0, false);
-						int x = Math.max(e.getPoint().x, (int) r.getMinX());
-						int y = (int) r.getMaxY() - 2;
-						if (e.getButton() != MouseEvent.BUTTON1) {
-							JPopupMenu popup;
-							popup = createPopupMenu();
-							if (popup != null) {
-								popup.show(ColumnsTable.this, x, y);
+					Rectangle r = getCellRect(ri, 0, false);
+					int x = Math.max(e.getPoint().x, (int) r.getMinX());
+					int y = (int) r.getMaxY() - 2;
+					if (e.getButton() != MouseEvent.BUTTON1) {
+						JPopupMenu popup;
+						popup = createPopupMenu(e);
+						if (popup != null) {
+							popup.show(ColumnsTable.this, x, y);
+						}
+					} else if (e.getClickCount() > 1) {
+						int i = -1;
+						ri = columnAtPoint(e.getPoint()) - 1;
+						if (ri >= 0 && !rb.rows.isEmpty() && rb.rowsTable.getRowSorter().getViewRowCount() > 0) {
+							i = rb.rowsTable.getRowSorter().convertRowIndexToModel(ri);
+							Point p = new Point(e.getX(), e.getY());
+							SwingUtilities.convertPointToScreen(p, ColumnsTable.this);
+							rb.openDetailsView(i, (int) p.getX(), (int) p.getY());
 						}
 					}
 				}
@@ -158,8 +201,6 @@ public class ColumnsTable extends JTable {
 					if (column == 0) {
 						((JLabel) render).setFont(italic);
 						((JLabel) render).setBackground(BGCOLUMNS);
-//					} else if (isSelected) {
-//						((JLabel) render).setBackground(BGSELECTED);
 					}
 				}
 				return render;
@@ -170,10 +211,20 @@ public class ColumnsTable extends JTable {
 
 	/**
 	 * Creates popup menu. 
+	 * @param e mouse event 
 	 */
-	public JPopupMenu createPopupMenu() {
+	private JPopupMenu createPopupMenu(MouseEvent e) {
+		int i = -1;
+		Row row = null;
+		int ri = columnAtPoint(e.getPoint()) - 1;
+		if (ri >= 0 && !rb.rows.isEmpty() && rb.rowsTable.getRowSorter().getViewRowCount() > 0) {
+			i = rb.rowsTable.getRowSorter().convertRowIndexToModel(ri);
+			row = rb.rows.get(i);
+		} else {
+			return null;
+		}
 		JMenuItem copyTCB = new JMenuItem("Copy to Clipboard");
-		copyTCB.setAccelerator(KS_COPY_TO_CLIPBOARD);
+		// copyTCB.setAccelerator(KS_COPY_TO_CLIPBOARD);
 		copyTCB.setEnabled(getSelectedColumnCount() > 0);
 		copyTCB.addActionListener(new ActionListener() {
 			@Override
@@ -181,10 +232,20 @@ public class ColumnsTable extends JTable {
 				UIUtil.copyToClipboard(ColumnsTable.this, false);
 			}
 		});
-				
-		JPopupMenu popup = new JPopupMenu();
-		popup.add(copyTCB);
-		return popup;
+		Point p = new Point(e.getX(), e.getY());
+		SwingUtilities.convertPointToScreen(p, this);
+		return rb.createPopupMenu(row, i, (int) p.getX(), (int) p.getY(), false, copyTCB, new Runnable() {
+			@Override
+			public void run() {
+				repaint();
+				for (int i = 0; i < getColumnCount(); i++) {
+					TableCellEditor defaultEditor = getDefaultEditor(getColumnClass(i));
+					if (defaultEditor != null) {
+						defaultEditor.cancelCellEditing();
+					}
+				}
+			}
+		}, false);
 	}
 
 	private void adjustTableColumnsWidth() {

src/main/gui/net/sf/jailer/ui/databrowser/sqlconsole/QueryTypeAnalyser.java

@@ -67,11 +67,13 @@ import net.sf.jsqlparser.expression.TimeKeyExpression;
 import net.sf.jsqlparser.expression.TimeValue;
 import net.sf.jsqlparser.expression.TimestampValue;
 import net.sf.jsqlparser.expression.UserVariable;
+import net.sf.jsqlparser.expression.ValueListExpression;
 import net.sf.jsqlparser.expression.WhenClause;
-import net.sf.jsqlparser.expression.WithinGroupExpression;
 import net.sf.jsqlparser.expression.operators.arithmetic.Addition;
 import net.sf.jsqlparser.expression.operators.arithmetic.BitwiseAnd;
+import net.sf.jsqlparser.expression.operators.arithmetic.BitwiseLeftShift;
 import net.sf.jsqlparser.expression.operators.arithmetic.BitwiseOr;
+import net.sf.jsqlparser.expression.operators.arithmetic.BitwiseRightShift;
 import net.sf.jsqlparser.expression.operators.arithmetic.BitwiseXor;
 import net.sf.jsqlparser.expression.operators.arithmetic.Concat;
 import net.sf.jsqlparser.expression.operators.arithmetic.Division;
@@ -102,6 +104,7 @@ import net.sf.jsqlparser.statement.SetStatement;
 import net.sf.jsqlparser.statement.Statement;
 import net.sf.jsqlparser.statement.StatementVisitor;
 import net.sf.jsqlparser.statement.Statements;
+import net.sf.jsqlparser.statement.UseStatement;
 import net.sf.jsqlparser.statement.alter.Alter;
 import net.sf.jsqlparser.statement.create.index.CreateIndex;
 import net.sf.jsqlparser.statement.create.table.CreateTable;
@@ -118,6 +121,7 @@ import net.sf.jsqlparser.statement.select.AllTableColumns;
 import net.sf.jsqlparser.statement.select.FromItemVisitor;
 import net.sf.jsqlparser.statement.select.Join;
 import net.sf.jsqlparser.statement.select.LateralSubSelect;
+import net.sf.jsqlparser.statement.select.ParenthesisFromItem;
 import net.sf.jsqlparser.statement.select.PlainSelect;
 import net.sf.jsqlparser.statement.select.Select;
 import net.sf.jsqlparser.statement.select.SelectExpressionItem;
@@ -310,9 +314,9 @@ public class QueryTypeAnalyser {
 					
 					@Override
 					public void visit(PlainSelect plainSelect) {
-						ExpressionAnalyzer expressionAnalyzer = new ExpressionAnalyzer(result);
+						final ExpressionAnalyzer expressionAnalyzer = new ExpressionAnalyzer(result);
 						if (plainSelect.getFromItem() != null) {
-							FromItemVisitor fromItemVisitor = new FromItemVisitor() {
+							final FromItemVisitor fromItemVisitor = new FromItemVisitor() {
 								private void unknownTable() {
 									result.put("-unknown-" + (unknownTableCounter++), null);
 								}
@@ -333,7 +337,18 @@ public class QueryTypeAnalyser {
 								
 								@Override
 								public void visit(SubJoin subjoin) {
-									unknownTable();
+									subjoin.getLeft().accept(this);
+									if (subjoin.getJoinList() != null) {
+										for (Join join: subjoin.getJoinList()) {
+											join.getRightItem().accept(this);
+										}
+										for (Join join: subjoin.getJoinList()) {
+											expressionAnalyzer.setOuterJoinExpression(join.isOuter() || join.isLeft() || join.isRight());
+											if (join.getOnExpression() != null) {
+												join.getOnExpression().accept(expressionAnalyzer);
+											}
+										}
+									}
 								}
 								
 								@Override
@@ -364,6 +379,12 @@ public class QueryTypeAnalyser {
 										}
 									}
 								}
+								@Override
+								public void visit(ParenthesisFromItem parenthesisFromItem) {
+									if (parenthesisFromItem.getFromItem() != null) {
+										parenthesisFromItem.getFromItem().accept(this);
+									}
+								}
 							};
 							plainSelect.getFromItem().accept(fromItemVisitor);
 							if (plainSelect.getJoins() != null) {
@@ -424,7 +445,13 @@ public class QueryTypeAnalyser {
 			pkColumns.add(new net.sf.jailer.datamodel.Column(pk, "", 0, -1));
 		}
 		PrimaryKey primaryKey = new PrimaryKeyFactory().createPrimaryKey(pkColumns);
-		Table table = new Table((schemaName == null? "" : schemaName + ".") + tableName, primaryKey, false, false);
+		Table toTable = theTable.getMetaDataSource().toTable(theTable);
+		Table table;
+		if (toTable != null) {
+			table = new Table(toTable.getName(), primaryKey, false, false);
+		} else {
+			table = new Table((schemaName == null? "" : schemaName + ".") + tableName, primaryKey, false, false);
+		}
 		List<net.sf.jailer.datamodel.Column> columns = new ArrayList<net.sf.jailer.datamodel.Column>();
 		for (String pk: columnNames) {
 			columns.add(new net.sf.jailer.datamodel.Column(pk, "", 0, -1));
@@ -556,11 +583,6 @@ public class QueryTypeAnalyser {
 				noSubexpression[0] = false;
 			}
 			
-			@Override
-			public void visit(WithinGroupExpression wgexpr) {
-				noSubexpression[0] = false;
-			}
-			
 			@Override
 			public void visit(AnalyticExpression aexpr) {
 				noSubexpression[0] = false;
@@ -775,6 +797,21 @@ public class QueryTypeAnalyser {
 			public void visit(NullValue nullValue) {
 				noSubexpression[0] = false;
 			}
+
+			@Override
+			public void visit(BitwiseRightShift aThis) {
+				noSubexpression[0] = false;
+			}
+
+			@Override
+			public void visit(BitwiseLeftShift aThis) {
+				noSubexpression[0] = false;
+			}
+
+			@Override
+			public void visit(ValueListExpression valueList) {
+				noSubexpression[0] = false;
+			}
 		};
 	}
 
@@ -869,6 +906,11 @@ public class QueryTypeAnalyser {
 		public void visit(Upsert upsert) {
 			throw new QueryTooComplexException();
 		}
+
+		@Override
+		public void visit(UseStatement use) {
+			throw new QueryTooComplexException();
+		}
 		
 	}
 	

src/main/gui/net/sf/jailer/ui/databrowser/sqlconsole/SQLConsole.java

@@ -23,6 +23,7 @@ import java.awt.Font;
 import java.awt.Frame;
 import java.awt.GridBagConstraints;
 import java.awt.Insets;
+import java.awt.Point;
 import java.awt.Rectangle;
 import java.awt.Window;
 import java.awt.event.ActionEvent;
@@ -160,6 +161,8 @@ public abstract class SQLConsole extends javax.swing.JPanel {
 	private JMenuItem menuItemToggle;
 	private JMenuItem menuItemSubstituteVariables;
 	private JMenuItem menuItemAnalyse;
+	private int initialTabbedPaneSelection = 0;
+	private int initialTabbedPaneSelectionLoc = -1;
 
 	private final String IGNORED_STATEMENTS = "(\\s*/\\s*)";
 
@@ -676,7 +679,7 @@ public abstract class SQLConsole extends javax.swing.JPanel {
      * @param statementStartOffset 
      * @param explain 
      */
-    private void executeSQL(final String sql, Status status, int statementStartOffset, final boolean explain) {
+    private void executeSQL(final String sql, final Status status, int statementStartOffset, final boolean explain) {
         Statement statement = null;
         ResultSet resultSet = null;
         final Status localStatus = new Status();
@@ -688,6 +691,7 @@ public abstract class SQLConsole extends javax.swing.JPanel {
             localStatus.numStatements++;
             status.updateView(false);
             statement = session.getConnection().createStatement();
+//            SqlUtil.limitFetchSize(statement, session);
             CancellationHandler.begin(statement, SQLConsole.this);
             long startTime = System.currentTimeMillis();
             sqlStatement = 
@@ -723,7 +727,7 @@ public abstract class SQLConsole extends javax.swing.JPanel {
             		hasUpdateCount = false;
             		hasResultSet = false;
             	} else {
-            		hasResultSet = statement.execute(sqlStatement);
+            		hasResultSet = executeStatementWithLimit(statement, sqlStatement, session);
             	}
             }
             if (hasResultSet) {
@@ -733,15 +737,15 @@ public abstract class SQLConsole extends javax.swing.JPanel {
                 for (int i = 0; i < metaData.getColumnCount(); ++i) {
                 	columnLabels[i] = metaData.getColumnLabel(i + 1);
                 }
-                ResultSetRenderer theMetaDataRenderer = null;
+                ResultSet theMetaDataResultSet = null;
                 String resultSetType = null;
                 try {
                     resultSetType = TabContentPanel.toType(metaData, session, executionContext);
-                	theMetaDataRenderer = new ResultSetRenderer(TabContentPanel.toMetaDataResultSet(metaData, session, executionContext), null, datamodel.get(), session, executionContext);
+                	theMetaDataResultSet = TabContentPanel.toMetaDataResultSet(metaData, session, executionContext);
 				} catch (Throwable e1) {
 					logger.info("error", e1);
 				}
-                final ResultSetRenderer metaDataRenderer = theMetaDataRenderer;
+                final ResultSet metaDataResultSet = theMetaDataResultSet;
                 final String finalResultSetType = resultSetType;
 				final Integer limit = (Integer) limitComboBox.getSelectedItem();
                 final List<Table> resultTypes = explain || sqlPlusResultSet != null? null : QueryTypeAnalyser.getType(sqlStatement, metaDataSource);
@@ -803,7 +807,7 @@ public abstract class SQLConsole extends javax.swing.JPanel {
                     @Override
                     public void run() {
                         final BrowserContentPane rb = new ResultContentPane(datamodel.get(), finalResultType, "", session, null, null,
-                                null, null, new RowsClosure(), limit, false, false, executionContext);
+                                null, null, new RowsClosure(), false, false, executionContext);
                         if (resultTypes != null && resultTypes.size() > 1) {
                             rb.setResultSetType(resultTypes);
                         }
@@ -815,6 +819,12 @@ public abstract class SQLConsole extends javax.swing.JPanel {
                         loadJob.run();
                         JComponent rTabContainer = rb.getRowsTableContainer();
                         metaDataDetails.reset();
+						JComponent metaDataRenderer = null;
+		                try {
+							metaDataRenderer = new ResultSetRenderer(metaDataResultSet, null, datamodel.get(), session, executionContext);
+						} catch (Throwable e1) {
+							logger.info("error", e1);
+						}
 						final TabContentPanel tabContentPanel = 
                         		new TabContentPanel(rb.rowsCount, 
                         				metaDataRenderer,
@@ -857,9 +867,17 @@ public abstract class SQLConsole extends javax.swing.JPanel {
                         rTabContainer = tabContentPanel;
                         final int MAXLENGTH = 30;
                         String title = shortSQL(sqlE, MAXLENGTH);
+                        final int loc = status != null && status.location != null? status.location.a : -1;
+                        if (initialTabbedPaneSelection >= 0 && initialTabbedPaneSelectionLoc == loc) {
+                        	if (initialTabbedPaneSelection < tabContentPanel.tabbedPane.getTabCount()) {
+                        		tabContentPanel.tabbedPane.setSelectedIndex(initialTabbedPaneSelection);
+                        	}
+                        }
                         tabContentPanel.tabbedPane.addChangeListener(new ChangeListener() {
 							@Override
 							public void stateChanged(ChangeEvent e) {
+								initialTabbedPaneSelection = tabContentPanel.tabbedPane.getSelectedIndex();
+								initialTabbedPaneSelectionLoc = loc;
 								updateColumnsAndTextView(rb, tabContentPanel);
 							}
 						});
@@ -886,12 +904,28 @@ public abstract class SQLConsole extends javax.swing.JPanel {
 						}
 						List<? extends SortKey> skeys = sorter.getSortKeys();
 						if (!skeys.isEmpty()) {
-							tableSortAndFilterState =  tableSortAndFilterState + (tableSortAndFilterState.isEmpty()? "Sorted" : " and sorted")
-									+ " by \"" + rb.rowsTable.getColumnName(skeys.get(0).getColumn()) + "\"";
+							for (int i = 0; i < rb.rowsTable.getColumnCount(); ++i) {
+								if (rb.rowsTable.getColumnModel().getColumn(i).getModelIndex() == skeys.get(0).getColumn()) {
+									tableSortAndFilterState = tableSortAndFilterState + (tableSortAndFilterState.isEmpty()? "Sorted" : " and sorted")
+											+ " by \"" + rb.rowsTable.getColumnName(i) + "\"";
+									break;
+								}
+							}
 						}
-						if (tabContentPanel.tabbedPane.getSelectedComponent() == tabContentPanel.columnsPanel) {
-							columnsTable = new ColumnsTable(rb.rowsTable);
+						if (tabContentPanel.tabbedPane.getSelectedComponent() == tabContentPanel.columnsPanel || tabContentPanel.tabbedPane.getSelectedComponent() == tabContentPanel.contentPanel) {
+							Point vp = null;
+							if (columnsTable != null) {
+								if (tabContentPanel.columnsScrollPane.getViewport() != null) {
+									vp = tabContentPanel.columnsScrollPane.getViewport().getViewPosition();
+								}
+							}
+							columnsTable = new ColumnsTable(rb);
 							tabContentPanel.columnsScrollPane.setViewportView(columnsTable);
+							if (vp != null) {
+								if (tabContentPanel.columnsScrollPane.getViewport() != null) {
+									tabContentPanel.columnsScrollPane.getViewport().setViewPosition(vp);
+								}
+							}
 							tabContentPanel.columnsSortedStateLabel.setText("  " + tableSortAndFilterState);
 							tabContentPanel.columnsSortedStateLabel.setVisible(!tableSortAndFilterState.isEmpty());
 						}
@@ -989,6 +1023,17 @@ public abstract class SQLConsole extends javax.swing.JPanel {
         }
     }
 
+	private boolean executeStatementWithLimit(Statement statement, String sqlStatement, Session session) throws SQLException {
+		if (DBMS.MySQL.equals(session.dbms)) {
+			try {
+				return statement.execute("(" + sqlStatement + "\n) limit " + (1 + (Integer) limitComboBox.getSelectedItem()));
+			} catch (Throwable e) {
+				return statement.execute(sqlStatement);
+			}
+		}
+		return statement.execute(sqlStatement);
+	}
+
 	public void setCaretPosition(int position) {
     	if (editorPane.getDocument().getLength() >= position) {
     		try {
@@ -1005,6 +1050,7 @@ public abstract class SQLConsole extends javax.swing.JPanel {
     }
 
     private void updateOutline(String sql, int startPosition) {
+    	sql = sql.replaceFirst(";\\s*$", "");
         final int MAX_CONTEXT_LENGTH = 80;
         final int MAX_TOOLTIP_LENGTH = 100;
         List<OutlineInfo> outlineInfos = new ArrayList<OutlineInfo>();
@@ -1536,6 +1582,7 @@ public abstract class SQLConsole extends javax.swing.JPanel {
         statusLabel.setText("Canceling...");
         statusLabel.setForeground(Color.RED);
     	CancellationHandler.cancel(this);
+    	cancelButton.setEnabled(false);
     }//GEN-LAST:event_cancelButtonActionPerformed
 
     // Variables declaration - do not modify//GEN-BEGIN:variables
@@ -1561,10 +1608,10 @@ public abstract class SQLConsole extends javax.swing.JPanel {
     class ResultContentPane extends BrowserContentPane {
         public ResultContentPane(DataModel dataModel, Table table, String condition, Session session, Row parentRow,
                 List<Row> parentRows, Association association, Frame parentFrame,
-                RowsClosure rowsClosure, Integer limit, Boolean selectDistinct,
+                RowsClosure rowsClosure, Boolean selectDistinct,
                 boolean reload, ExecutionContext executionContext) {
             super(dataModel, table, condition, session, parentRow, parentRows, association, parentFrame, 
-            		rowsClosure, limit, selectDistinct, reload, executionContext);
+            		rowsClosure, selectDistinct, reload, executionContext);
             noSingleRowDetailsView = true;
             rowsTableScrollPane.setWheelScrollingEnabled(true);
         }
@@ -1598,7 +1645,8 @@ public abstract class SQLConsole extends javax.swing.JPanel {
         protected void onContentChange(List<Row> rows, boolean reloadChildren) {
         }
         @Override
-        protected void navigateTo(Association association, int rowIndex, Row row) {
+        protected RowBrowser navigateTo(Association association, int rowIndex, Row row) {
+        	return null;
         }
         @Override
         protected List<RowBrowser> getTableBrowser() {
@@ -1680,6 +1728,9 @@ public abstract class SQLConsole extends javax.swing.JPanel {
         protected SQLConsole getSqlConsole(boolean switchToConsole) {
             return SQLConsole.this;
         }
+		@Override
+		protected void deselectChildrenIfNeededWithoutReload() {
+		}
     };
 
     private class TitelPanel extends JPanel {
@@ -2007,6 +2058,15 @@ public abstract class SQLConsole extends javax.swing.JPanel {
 	public boolean isEmpty() {
 		return editorPane.getDocument().getLength() == 0;
 	}
+	
+	/**
+	 * Sets the row limit.
+	 * 
+	 * @param limit the row limit
+	 */
+	public void setRowLimit(Integer limit) {
+		limitComboBox.setSelectedItem(limit);
+	}
 
 	private int initialContentSize;
 	private int initialContentHash;
@@ -2123,4 +2183,5 @@ public abstract class SQLConsole extends javax.swing.JPanel {
             logger.info("error", e);
         }
     }
+
 }

src/main/gui/net/sf/jailer/ui/graphical_view/DisplayExporter.java

@@ -1,6 +1,5 @@
 package net.sf.jailer.ui.graphical_view;
 
-import java.awt.Cursor;
 import java.awt.Dimension;
 import java.awt.Graphics2D;
 import java.awt.GraphicsEnvironment;
@@ -16,6 +15,7 @@ import java.util.HashSet;
 import javax.imageio.ImageIO;
 import javax.swing.JFileChooser;
 
+import net.sf.jailer.ui.UIUtil;
 import prefuse.Display;
 import prefuse.Visualization;
 import prefuse.util.GraphicsLib;
@@ -113,7 +113,7 @@ public class DisplayExporter {
 		String m_group = Visualization.ALL_ITEMS;
 
 		try {
-			display.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
+			UIUtil.setWaitCursor(display);
 			
 			// Now comes the nice part
 
@@ -165,7 +165,7 @@ public class DisplayExporter {
 
 			return true;
 		} finally {
-			display.setCursor(Cursor.getDefaultCursor());
+			UIUtil.resetWaitCursor(display);
 		}
 	}
 

src/main/gui/net/sf/jailer/ui/graphical_view/GraphicalDataModelView.java

@@ -115,7 +115,7 @@ public class GraphicalDataModelView extends JPanel {
 	/**
 	 * Maximum number of tables to make visible during expansion ("expand single table").
 	 */
-	public static final int EXPAND_SINGLE_TABLE_LIMIT = 10;
+	public static final int EXPAND_SINGLE_TABLE_LIMIT = 4;
 	
 	/**
 	 * The selected association.
@@ -362,7 +362,7 @@ public class GraphicalDataModelView extends JPanel {
 						popup.show(e.getComponent(), e.getX(), e.getY());
 					}
 					if (table != null) {
-						JPopupMenu popup = createPopupMenu(table, true);
+						JPopupMenu popup = createPopupMenu(table, null, true);
 						popup.show(e.getComponent(), e.getX(), e.getY());
 					}
 				}
@@ -693,9 +693,10 @@ public class GraphicalDataModelView extends JPanel {
 	 * Creates popup menu.
 	 *
 	 * @param table the table for which the menu pops up
+	 * @param findPathMenuItem additional menu item
 	 * @return the popup menu
 	 */
-	public JPopupMenu createPopupMenu(final Table table, boolean withNavigation) {
+	public JPopupMenu createPopupMenu(final Table table, JMenuItem findPathMenuItem, boolean withNavigation) {
 		JPopupMenu popup = new JScrollPopupMenu();
 		boolean withModifications = modelEditor.getAdditionalPopupMenuItems().isEmpty();
 			
@@ -771,7 +772,7 @@ public class GraphicalDataModelView extends JPanel {
 //				modelEditor.select(table);
 //			}
 //		});
-		JMenuItem selectAsRoot = new JMenuItem("Focus " + table.getName());
+		JMenuItem selectAsRoot = new JMenuItem("Focus on " + table.getName());
 		selectAsRoot.addActionListener(new ActionListener () {
 			@Override
 			public void actionPerformed(ActionEvent e) {
@@ -892,6 +893,9 @@ public class GraphicalDataModelView extends JPanel {
 		if (navigateTo != null) {
 			popup.add(navigateTo);
 		}
+		if (findPathMenuItem != null) {
+			popup.add(findPathMenuItem);
+		}
 		if (withModifications){
 			popup.add(dataBrowser);
 		}
@@ -1360,10 +1364,12 @@ public class GraphicalDataModelView extends JPanel {
 	 * Creates visible node for given table.
 	 */
 	public void showTable(Table source, Table destination) {
-		List<Table> toCheck = new ArrayList<Table>();
-		toCheck.add(destination);
-		addEdges(theGraph, source, null, toCheck, false, new HashSet<Table>(toCheck));
-		checkForExpansion(theGraph, model.getTables(), true);
+		synchronized (visualization) {
+			List<Table> toCheck = new ArrayList<Table>();
+			toCheck.add(destination);
+			addEdges(theGraph, source, null, toCheck, false, new HashSet<Table>(toCheck));
+			checkForExpansion(theGraph, model.getTables(), true);
+		}
 	}
 	
 	/**

src/main/gui/net/sf/jailer/ui/pathfinder/HistoryItem.java

@@ -0,0 +1,42 @@
+/*
+ * Copyright 2007 - 2018 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package net.sf.jailer.ui.pathfinder;
+
+import java.io.Serializable;
+import java.util.List;
+import java.util.Set;
+
+/**
+ * Item in the path-history of {@link PathFinderView}.
+ * 
+ * @author Ralf Wisser
+ */
+public class HistoryItem implements Serializable {
+	private static final long serialVersionUID = -2228012653415732355L;
+
+	public String source;
+	public String destination;
+	public boolean implicit = false;
+	
+	public List<String> pathStations;
+	public List<String> path;
+	public Set<String> excludedTables;
+
+	public boolean isValid() {
+		return path != null && pathStations != null && excludedTables != null && source != null && destination != null;
+	}
+	
+}

src/main/gui/net/sf/jailer/ui/pathfinder/HistoryPanel.form

@@ -0,0 +1,85 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+
+<Form version="1.3" maxVersion="1.9" type="org.netbeans.modules.form.forminfo.JPanelFormInfo">
+  <AuxValues>
+    <AuxValue name="FormSettings_autoResourcing" type="java.lang.Integer" value="0"/>
+    <AuxValue name="FormSettings_autoSetComponentName" type="java.lang.Boolean" value="false"/>
+    <AuxValue name="FormSettings_generateFQN" type="java.lang.Boolean" value="true"/>
+    <AuxValue name="FormSettings_generateMnemonicsCode" type="java.lang.Boolean" value="false"/>
+    <AuxValue name="FormSettings_i18nAutoMode" type="java.lang.Boolean" value="false"/>
+    <AuxValue name="FormSettings_layoutCodeTarget" type="java.lang.Integer" value="1"/>
+    <AuxValue name="FormSettings_listenerGenerationStyle" type="java.lang.Integer" value="0"/>
+    <AuxValue name="FormSettings_variablesLocal" type="java.lang.Boolean" value="false"/>
+    <AuxValue name="FormSettings_variablesModifier" type="java.lang.Integer" value="2"/>
+    <AuxValue name="designerSize" type="java.awt.Dimension" value="-84,-19,0,5,115,114,0,18,106,97,118,97,46,97,119,116,46,68,105,109,101,110,115,105,111,110,65,-114,-39,-41,-84,95,68,20,2,0,2,73,0,6,104,101,105,103,104,116,73,0,5,119,105,100,116,104,120,112,0,0,1,44,0,0,1,-112"/>
+  </AuxValues>
+
+  <Layout class="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout"/>
+  <SubComponents>
+    <Container class="javax.swing.JPanel" name="jPanel1">
+      <Constraints>
+        <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+          <GridBagConstraints gridX="1" gridY="1" gridWidth="1" gridHeight="1" fill="1" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="10" weightX="1.0" weightY="1.0"/>
+        </Constraint>
+      </Constraints>
+
+      <Layout class="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout"/>
+      <SubComponents>
+        <Container class="javax.swing.JPanel" name="jPanel2">
+          <Properties>
+            <Property name="border" type="javax.swing.border.Border" editor="org.netbeans.modules.form.editors2.BorderEditor">
+              <Border info="org.netbeans.modules.form.compat2.border.TitledBorderInfo">
+                <TitledBorder title="History"/>
+              </Border>
+            </Property>
+          </Properties>
+          <Constraints>
+            <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+              <GridBagConstraints gridX="1" gridY="1" gridWidth="1" gridHeight="1" fill="1" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="10" weightX="1.0" weightY="1.0"/>
+            </Constraint>
+          </Constraints>
+
+          <Layout class="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout"/>
+          <SubComponents>
+            <Container class="javax.swing.JScrollPane" name="jScrollPane1">
+              <AuxValues>
+                <AuxValue name="autoScrollPane" type="java.lang.Boolean" value="true"/>
+              </AuxValues>
+              <Constraints>
+                <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+                  <GridBagConstraints gridX="1" gridY="1" gridWidth="1" gridHeight="1" fill="1" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="10" weightX="1.0" weightY="1.0"/>
+                </Constraint>
+              </Constraints>
+
+              <Layout class="org.netbeans.modules.form.compat2.layouts.support.JScrollPaneSupportLayout"/>
+              <SubComponents>
+                <Component class="javax.swing.JTable" name="historyTable">
+                  <Properties>
+                    <Property name="model" type="javax.swing.table.TableModel" editor="org.netbeans.modules.form.editors2.TableModelEditor">
+                      <Table columnCount="4" rowCount="4">
+                        <Column editable="true" title="Title 1" type="java.lang.Object"/>
+                        <Column editable="true" title="Title 2" type="java.lang.Object"/>
+                        <Column editable="true" title="Title 3" type="java.lang.Object"/>
+                        <Column editable="true" title="Title 4" type="java.lang.Object"/>
+                      </Table>
+                    </Property>
+                  </Properties>
+                </Component>
+              </SubComponents>
+            </Container>
+            <Component class="javax.swing.JLabel" name="jLabel1">
+              <Properties>
+                <Property name="text" type="java.lang.String" value="                                                                            "/>
+              </Properties>
+              <Constraints>
+                <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+                  <GridBagConstraints gridX="1" gridY="2" gridWidth="1" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="10" weightX="0.0" weightY="0.0"/>
+                </Constraint>
+              </Constraints>
+            </Component>
+          </SubComponents>
+        </Container>
+      </SubComponents>
+    </Container>
+  </SubComponents>
+</Form>

src/main/gui/net/sf/jailer/ui/pathfinder/HistoryPanel.java

@@ -0,0 +1,218 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package net.sf.jailer.ui.pathfinder;
+
+import java.awt.Color;
+import java.awt.Component;
+import java.awt.event.MouseAdapter;
+import java.awt.event.MouseEvent;
+import java.util.List;
+
+import javax.swing.JLabel;
+import javax.swing.JTable;
+import javax.swing.ListSelectionModel;
+import javax.swing.SwingUtilities;
+import javax.swing.event.ListSelectionEvent;
+import javax.swing.event.ListSelectionListener;
+import javax.swing.table.DefaultTableCellRenderer;
+import javax.swing.table.DefaultTableModel;
+import javax.swing.table.TableCellRenderer;
+import javax.swing.table.TableColumn;
+
+import net.sf.jailer.datamodel.DataModel;
+import net.sf.jailer.datamodel.Table;
+import net.sf.jailer.ui.UIUtil;
+
+/**
+ * Path History Panel.
+ * 
+ * @author Ralf Wisser
+ */
+public abstract class HistoryPanel extends javax.swing.JPanel {
+	private static final long serialVersionUID = -482021751302785536L;
+
+	private final DataModel dataModel;
+	private final Table source;
+
+	/**
+     * Creates new form HistoryPanel
+     */
+    public HistoryPanel(Table source, DataModel dataModel) {
+    	this.dataModel = dataModel;
+    	this.source = source;
+        initComponents();
+        if (source == null) {
+        	setVisible(false);
+        } else {
+        	initTable();
+        }
+    }
+    
+    private void initTable() {
+		final TableCellRenderer defaultTableCellRenderer = historyTable.getDefaultRenderer(String.class);
+		TableCellRenderer renderer = new TableCellRenderer() {
+			final Color BG1 = new Color(255, 255, 255);
+			final Color BG2 = new Color(242, 255, 242);
+
+			@Override
+			public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
+				Component render = defaultTableCellRenderer.getTableCellRendererComponent(table, value, isSelected, false, row, column);
+				if (!isSelected) {
+					render.setBackground((row % 2 == 0) ? BG1 : BG2);
+				}
+				if (render instanceof JLabel) {
+					((JLabel) render).setToolTipText(UIUtil.toHTML(String.valueOf(value), 200));
+				}
+				return render;
+			}
+		};
+		historyTable.getColumnModel().getColumn(0).setCellRenderer(renderer);
+		historyTable.setDefaultRenderer(Object.class, renderer);
+		historyTable.setAutoCreateRowSorter(true);
+		historyTable.setRowSelectionAllowed(true);
+		historyTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
+		
+		historyTable.addMouseListener(new MouseAdapter() {
+			@Override
+			public void mouseClicked(MouseEvent arg0) {
+				SwingUtilities.invokeLater(new Runnable() {
+					@Override
+					public void run() {
+						int sr = historyTable.getSelectedRow();
+						if (sr >= 0) {
+							close();
+							apply(source, dests.get(historyTable.getRowSorter().convertRowIndexToModel(sr)));
+						}
+					}
+				});
+			}
+		});
+		historyTable.getSelectionModel().addListSelectionListener(new ListSelectionListener() {
+			@Override
+			public void valueChanged(ListSelectionEvent e) {
+			}
+		});
+
+		DefaultTableModel tableModel = new DefaultTableModel(new String[] { "Destination" }, 0) {
+			private static final long serialVersionUID = 1L;
+
+			@Override
+			public boolean isCellEditable(int row, int column) {
+				return column == 0;
+			}
+		};
+		dests = PathFinderView.getHistoricDestinations(source, dataModel);
+		
+		for (Table table: dests) {
+			tableModel.addRow(new Object[] { dataModel.getDisplayName(table) });
+		}
+		
+		historyTable.setModel(tableModel);
+		
+		adjustTableColumnsWidth(historyTable);
+	}
+
+    private List<Table> dests;
+    
+    public void adjustTableColumnsWidth(JTable table) {
+		DefaultTableModel dtm = (DefaultTableModel) table.getModel();
+		DefaultTableCellRenderer defaultTableCellRenderer = new DefaultTableCellRenderer();
+		for (int i = 0; i < table.getColumnCount(); i++) {
+			TableColumn column = table.getColumnModel().getColumn(i);
+			Component comp = defaultTableCellRenderer.getTableCellRendererComponent(table, column.getHeaderValue(), false, false, 0, i);
+			int width = 1;
+			width = Math.max(width, comp.getPreferredSize().width);
+
+			int line = 0;
+			for (; line < table.getRowCount(); ++line) {
+				comp = table.getCellRenderer(line, i).getTableCellRendererComponent(table, dtm.getValueAt(line, i), false, false, line, i);
+				width = Math.max(width, comp.getPreferredSize().width);
+			}
+			column.setPreferredWidth(Math.min(width, 400));
+			if (i == 0) {
+				column.setWidth(column.getPreferredWidth());
+			}
+		}
+	}
+    /**
+     * This method is called from within the constructor to initialize the form.
+     * WARNING: Do NOT modify this code. The content of this method is always
+     * regenerated by the Form Editor.
+     */
+    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
+    private void initComponents() {
+        java.awt.GridBagConstraints gridBagConstraints;
+
+        jPanel1 = new javax.swing.JPanel();
+        jPanel2 = new javax.swing.JPanel();
+        jScrollPane1 = new javax.swing.JScrollPane();
+        historyTable = new javax.swing.JTable();
+        jLabel1 = new javax.swing.JLabel();
+
+        setLayout(new java.awt.GridBagLayout());
+
+        jPanel1.setLayout(new java.awt.GridBagLayout());
+
+        jPanel2.setBorder(javax.swing.BorderFactory.createTitledBorder("History"));
+        jPanel2.setLayout(new java.awt.GridBagLayout());
+
+        historyTable.setModel(new javax.swing.table.DefaultTableModel(
+            new Object [][] {
+                {null, null, null, null},
+                {null, null, null, null},
+                {null, null, null, null},
+                {null, null, null, null}
+            },
+            new String [] {
+                "Title 1", "Title 2", "Title 3", "Title 4"
+            }
+        ));
+        jScrollPane1.setViewportView(historyTable);
+
+        gridBagConstraints = new java.awt.GridBagConstraints();
+        gridBagConstraints.gridx = 1;
+        gridBagConstraints.gridy = 1;
+        gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
+        gridBagConstraints.weightx = 1.0;
+        gridBagConstraints.weighty = 1.0;
+        jPanel2.add(jScrollPane1, gridBagConstraints);
+
+        jLabel1.setText("                                                                            ");
+        gridBagConstraints = new java.awt.GridBagConstraints();
+        gridBagConstraints.gridx = 1;
+        gridBagConstraints.gridy = 2;
+        jPanel2.add(jLabel1, gridBagConstraints);
+
+        gridBagConstraints = new java.awt.GridBagConstraints();
+        gridBagConstraints.gridx = 1;
+        gridBagConstraints.gridy = 1;
+        gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
+        gridBagConstraints.weightx = 1.0;
+        gridBagConstraints.weighty = 1.0;
+        jPanel1.add(jPanel2, gridBagConstraints);
+
+        gridBagConstraints = new java.awt.GridBagConstraints();
+        gridBagConstraints.gridx = 1;
+        gridBagConstraints.gridy = 1;
+        gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
+        gridBagConstraints.weightx = 1.0;
+        gridBagConstraints.weighty = 1.0;
+        add(jPanel1, gridBagConstraints);
+    }// </editor-fold>//GEN-END:initComponents
+
+
+    // Variables declaration - do not modify//GEN-BEGIN:variables
+    private javax.swing.JTable historyTable;
+    private javax.swing.JLabel jLabel1;
+    private javax.swing.JPanel jPanel1;
+    private javax.swing.JPanel jPanel2;
+    private javax.swing.JScrollPane jScrollPane1;
+    // End of variables declaration//GEN-END:variables
+
+	protected abstract void close();
+	protected abstract void apply(Table source, Table destination);
+
+}

src/main/gui/net/sf/jailer/ui/pathfinder/PathFinder.java

@@ -0,0 +1,104 @@
+/*
+ * Copyright 2007 - 2018 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package net.sf.jailer.ui.pathfinder;
+
+import java.awt.Dimension;
+import java.awt.Frame;
+import java.awt.Point;
+import java.awt.Toolkit;
+import java.awt.event.ComponentAdapter;
+import java.awt.event.ComponentEvent;
+import java.util.List;
+
+import org.fife.rsta.ui.EscapableDialog;
+
+import net.sf.jailer.datamodel.DataModel;
+import net.sf.jailer.datamodel.Table;
+import net.sf.jailer.ui.UIUtil;
+
+/**
+ * Finds path between two tables.
+ * 
+ * @author Ralf Wisser
+ */
+public class PathFinder {
+
+	private List<Table> path;
+	private boolean expand;
+	
+	public class Result {
+		public List<Table> path;
+		public boolean expand;
+	}
+
+	public Result find(Table source, Table destination, DataModel dataModel, boolean withOpenTablesButton, boolean fromHistory, Frame owner) {
+		final EscapableDialog dialog = new EscapableDialog(owner, "PathFinder", true) {
+			private static final long serialVersionUID = 1L;
+		};
+
+		final PathFinderView view = new PathFinderView(dataModel, source, destination, withOpenTablesButton, fromHistory) {
+			@Override
+			protected void applyPath(List<Table> path, boolean expand) {
+				PathFinder.this.path = path;
+				PathFinder.this.expand = expand;
+				dialog.setVisible(false);
+			}
+			private static final long serialVersionUID = 1L;
+		};
+
+		view.showGraph(true);
+		
+		dialog.getContentPane().add(view);
+		dialog.pack();
+		int minWidth = 1200;
+		dialog.setSize(minWidth, Math.min(Math.max(dialog.getHeight() + 20, 440), 600));
+        dialog.addComponentListener(new ComponentAdapter() {
+			@Override
+			public void componentShown(ComponentEvent arg0) {
+				view.sepLabel.setVisible(false);
+			}
+		});
+		Point ownerLoc;
+		Dimension ownerSize;
+		if (owner != null) {
+			ownerLoc = owner.getLocation();
+			ownerSize = owner.getSize();
+		} else {
+			ownerLoc = new Point();
+			ownerSize = Toolkit.getDefaultToolkit().getScreenSize();
+		}
+		int x = (int) (ownerLoc.getX() + ownerSize.getWidth() / 2 - dialog.getWidth() / 2);
+		int y = (int) (ownerLoc.getY() + ownerSize.getHeight() / 2 - dialog.getHeight() / 2);
+		dialog.setLocation(x, y);
+		int h = dialog.getHeight();
+		UIUtil.fit(dialog);
+		if (h > dialog.getHeight()) {
+			dialog.setLocation(x, y - (h - dialog.getHeight()));
+			dialog.setSize(Math.max(minWidth, dialog.getWidth()), Math.min(Math.max(dialog.getHeight() + 20, 400), 600));
+			UIUtil.fit(dialog);
+		}
+		
+		dialog.setVisible(true);
+		if (path == null) {
+			return null;
+		}
+		Result result = new Result();
+		result.path = path;
+		result.expand = expand;
+		return result;
+	}
+
+}

src/main/gui/net/sf/jailer/ui/pathfinder/PathFinderView.form

@@ -0,0 +1,304 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+
+<Form version="1.3" maxVersion="1.9" type="org.netbeans.modules.form.forminfo.JPanelFormInfo">
+  <AuxValues>
+    <AuxValue name="FormSettings_autoResourcing" type="java.lang.Integer" value="0"/>
+    <AuxValue name="FormSettings_autoSetComponentName" type="java.lang.Boolean" value="false"/>
+    <AuxValue name="FormSettings_generateFQN" type="java.lang.Boolean" value="true"/>
+    <AuxValue name="FormSettings_generateMnemonicsCode" type="java.lang.Boolean" value="false"/>
+    <AuxValue name="FormSettings_i18nAutoMode" type="java.lang.Boolean" value="false"/>
+    <AuxValue name="FormSettings_layoutCodeTarget" type="java.lang.Integer" value="1"/>
+    <AuxValue name="FormSettings_listenerGenerationStyle" type="java.lang.Integer" value="0"/>
+    <AuxValue name="FormSettings_variablesLocal" type="java.lang.Boolean" value="false"/>
+    <AuxValue name="FormSettings_variablesModifier" type="java.lang.Integer" value="2"/>
+    <AuxValue name="designerSize" type="java.awt.Dimension" value="-84,-19,0,5,115,114,0,18,106,97,118,97,46,97,119,116,46,68,105,109,101,110,115,105,111,110,65,-114,-39,-41,-84,95,68,20,2,0,2,73,0,6,104,101,105,103,104,116,73,0,5,119,105,100,116,104,120,112,0,0,1,83,0,0,2,-34"/>
+  </AuxValues>
+
+  <Layout class="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout"/>
+  <SubComponents>
+    <Container class="javax.swing.JPanel" name="jPanel1">
+      <Constraints>
+        <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+          <GridBagConstraints gridX="1" gridY="1" gridWidth="1" gridHeight="1" fill="1" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="10" weightX="1.0" weightY="1.0"/>
+        </Constraint>
+      </Constraints>
+
+      <Layout class="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout"/>
+      <SubComponents>
+        <Container class="javax.swing.JSplitPane" name="jSplitPane1">
+          <Properties>
+            <Property name="resizeWeight" type="double" value="1.0"/>
+          </Properties>
+          <Constraints>
+            <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+              <GridBagConstraints gridX="1" gridY="2" gridWidth="1" gridHeight="1" fill="1" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="10" weightX="1.0" weightY="1.0"/>
+            </Constraint>
+          </Constraints>
+
+          <Layout class="org.netbeans.modules.form.compat2.layouts.support.JSplitPaneSupportLayout"/>
+          <SubComponents>
+            <Container class="javax.swing.JPanel" name="jPanel2">
+              <Properties>
+                <Property name="border" type="javax.swing.border.Border" editor="org.netbeans.modules.form.editors2.BorderEditor">
+                  <Border info="org.netbeans.modules.form.compat2.border.TitledBorderInfo">
+                    <TitledBorder title="Union of all shortest paths without excluded tables."/>
+                  </Border>
+                </Property>
+                <Property name="foreground" type="java.awt.Color" editor="org.netbeans.beaninfo.editors.ColorEditor">
+                  <Color blue="ff" green="ff" id="white" palette="1" red="ff" type="palette"/>
+                </Property>
+                <Property name="opaque" type="boolean" value="false"/>
+              </Properties>
+              <Constraints>
+                <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.support.JSplitPaneSupportLayout" value="org.netbeans.modules.form.compat2.layouts.support.JSplitPaneSupportLayout$JSplitPaneConstraintsDescription">
+                  <JSplitPaneConstraints position="left"/>
+                </Constraint>
+              </Constraints>
+
+              <Layout class="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout"/>
+              <SubComponents>
+                <Container class="javax.swing.JScrollPane" name="jScrollPane1">
+                  <Constraints>
+                    <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+                      <GridBagConstraints gridX="0" gridY="1" gridWidth="3" gridHeight="1" fill="1" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="10" weightX="1.0" weightY="1.0"/>
+                    </Constraint>
+                  </Constraints>
+
+                  <Layout class="org.netbeans.modules.form.compat2.layouts.support.JScrollPaneSupportLayout"/>
+                  <SubComponents>
+                    <Container class="javax.swing.JPanel" name="pathContainerPanel">
+                      <Properties>
+                        <Property name="background" type="java.awt.Color" editor="org.netbeans.beaninfo.editors.ColorEditor">
+                          <Color blue="ff" green="ff" id="white" palette="1" red="ff" type="palette"/>
+                        </Property>
+                      </Properties>
+
+                      <Layout class="org.netbeans.modules.form.compat2.layouts.DesignBorderLayout"/>
+                    </Container>
+                  </SubComponents>
+                </Container>
+                <Component class="javax.swing.JButton" name="okButton">
+                  <Properties>
+                    <Property name="text" type="java.lang.String" value="Show Path"/>
+                  </Properties>
+                  <Events>
+                    <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="okButtonActionPerformed"/>
+                  </Events>
+                  <Constraints>
+                    <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+                      <GridBagConstraints gridX="1" gridY="3" gridWidth="1" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="13" weightX="1.0" weightY="0.0"/>
+                    </Constraint>
+                  </Constraints>
+                </Component>
+                <Component class="javax.swing.JButton" name="okExpandButton">
+                  <Properties>
+                    <Property name="text" type="java.lang.String" value="Show Path and open Tables"/>
+                  </Properties>
+                  <Events>
+                    <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="okExpandButtonActionPerformed"/>
+                  </Events>
+                  <Constraints>
+                    <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+                      <GridBagConstraints gridX="2" gridY="3" gridWidth="1" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="13" weightX="0.0" weightY="0.0"/>
+                    </Constraint>
+                  </Constraints>
+                </Component>
+                <Component class="javax.swing.JLabel" name="sepLabel">
+                  <Properties>
+                    <Property name="text" type="java.lang.String" value="                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       "/>
+                  </Properties>
+                  <AuxValues>
+                    <AuxValue name="JavaCodeGenerator_VariableModifier" type="java.lang.Integer" value="0"/>
+                  </AuxValues>
+                  <Constraints>
+                    <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+                      <GridBagConstraints gridX="0" gridY="2" gridWidth="3" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="10" weightX="0.0" weightY="0.0"/>
+                    </Constraint>
+                  </Constraints>
+                </Component>
+                <Component class="javax.swing.JLabel" name="jLabel2">
+                  <Properties>
+                    <Property name="foreground" type="java.awt.Color" editor="org.netbeans.beaninfo.editors.ColorEditor">
+                      <Color blue="80" green="80" id="gray" palette="1" red="80" type="palette"/>
+                    </Property>
+                    <Property name="text" type="java.lang.String" value="Open context menu (right mouse click on table) to define its direct successor."/>
+                  </Properties>
+                  <Constraints>
+                    <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+                      <GridBagConstraints gridX="0" gridY="2" gridWidth="3" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="17" weightX="0.0" weightY="0.0"/>
+                    </Constraint>
+                  </Constraints>
+                </Component>
+              </SubComponents>
+            </Container>
+            <Container class="javax.swing.JPanel" name="jPanel3">
+              <Properties>
+                <Property name="border" type="javax.swing.border.Border" editor="org.netbeans.modules.form.editors2.BorderEditor">
+                  <Border info="org.netbeans.modules.form.compat2.border.TitledBorderInfo">
+                    <TitledBorder title="Excluded Tables"/>
+                  </Border>
+                </Property>
+              </Properties>
+              <Constraints>
+                <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.support.JSplitPaneSupportLayout" value="org.netbeans.modules.form.compat2.layouts.support.JSplitPaneSupportLayout$JSplitPaneConstraintsDescription">
+                  <JSplitPaneConstraints position="right"/>
+                </Constraint>
+              </Constraints>
+
+              <Layout class="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout"/>
+              <SubComponents>
+                <Container class="javax.swing.JScrollPane" name="jScrollPane2">
+                  <AuxValues>
+                    <AuxValue name="autoScrollPane" type="java.lang.Boolean" value="true"/>
+                  </AuxValues>
+                  <Constraints>
+                    <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+                      <GridBagConstraints gridX="1" gridY="1" gridWidth="1" gridHeight="1" fill="1" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="10" weightX="1.0" weightY="1.0"/>
+                    </Constraint>
+                  </Constraints>
+
+                  <Layout class="org.netbeans.modules.form.compat2.layouts.support.JScrollPaneSupportLayout"/>
+                  <SubComponents>
+                    <Component class="javax.swing.JTable" name="exclusionTable">
+                      <Properties>
+                        <Property name="model" type="javax.swing.table.TableModel" editor="org.netbeans.modules.form.editors2.TableModelEditor">
+                          <Table columnCount="4" rowCount="4">
+                            <Column editable="true" title="Title 1" type="java.lang.Object"/>
+                            <Column editable="true" title="Title 2" type="java.lang.Object"/>
+                            <Column editable="true" title="Title 3" type="java.lang.Object"/>
+                            <Column editable="true" title="Title 4" type="java.lang.Object"/>
+                          </Table>
+                        </Property>
+                      </Properties>
+                    </Component>
+                  </SubComponents>
+                </Container>
+                <Component class="javax.swing.JLabel" name="jLabel1">
+                  <Properties>
+                    <Property name="text" type="java.lang.String" value="                                                                                                 "/>
+                  </Properties>
+                  <Constraints>
+                    <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+                      <GridBagConstraints gridX="1" gridY="2" gridWidth="1" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="10" weightX="0.0" weightY="0.0"/>
+                    </Constraint>
+                  </Constraints>
+                </Component>
+              </SubComponents>
+            </Container>
+          </SubComponents>
+        </Container>
+        <Container class="javax.swing.JPanel" name="jPanel4">
+          <Constraints>
+            <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+              <GridBagConstraints gridX="1" gridY="0" gridWidth="1" gridHeight="1" fill="2" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="17" weightX="1.0" weightY="0.0"/>
+            </Constraint>
+          </Constraints>
+
+          <Layout class="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout"/>
+          <SubComponents>
+            <Component class="javax.swing.JButton" name="undoButton">
+              <Properties>
+                <Property name="text" type="java.lang.String" value="jButton1"/>
+                <Property name="focusable" type="boolean" value="false"/>
+                <Property name="horizontalTextPosition" type="int" value="0"/>
+                <Property name="verticalTextPosition" type="int" value="3"/>
+              </Properties>
+              <Events>
+                <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="undoButtonActionPerformed"/>
+              </Events>
+              <Constraints>
+                <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+                  <GridBagConstraints gridX="-1" gridY="-1" gridWidth="1" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="10" weightX="0.0" weightY="0.0"/>
+                </Constraint>
+              </Constraints>
+            </Component>
+            <Component class="javax.swing.JButton" name="redoButton">
+              <Properties>
+                <Property name="text" type="java.lang.String" value="jButton1"/>
+                <Property name="focusable" type="boolean" value="false"/>
+                <Property name="horizontalTextPosition" type="int" value="0"/>
+                <Property name="verticalTextPosition" type="int" value="3"/>
+              </Properties>
+              <Events>
+                <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="redoButtonActionPerformed"/>
+              </Events>
+              <Constraints>
+                <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+                  <GridBagConstraints gridX="-1" gridY="-1" gridWidth="1" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="10" weightX="0.0" weightY="0.0"/>
+                </Constraint>
+              </Constraints>
+            </Component>
+            <Component class="javax.swing.JSeparator" name="jSeparator2">
+              <Properties>
+                <Property name="orientation" type="int" value="1"/>
+              </Properties>
+              <Constraints>
+                <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+                  <GridBagConstraints gridX="3" gridY="0" gridWidth="1" gridHeight="1" fill="3" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="8" insetsBottom="0" insetsRight="8" anchor="10" weightX="0.0" weightY="1.0"/>
+                </Constraint>
+              </Constraints>
+            </Component>
+            <Component class="javax.swing.JButton" name="historyButton">
+              <Properties>
+                <Property name="text" type="java.lang.String" value="From History"/>
+                <Property name="toolTipText" type="java.lang.String" value="Take the previously determined path."/>
+              </Properties>
+              <Events>
+                <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="historyButtonActionPerformed"/>
+              </Events>
+              <Constraints>
+                <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+                  <GridBagConstraints gridX="-1" gridY="-1" gridWidth="1" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="10" weightX="0.0" weightY="0.0"/>
+                </Constraint>
+              </Constraints>
+            </Component>
+            <Component class="javax.swing.JSeparator" name="jSeparator3">
+              <Properties>
+                <Property name="orientation" type="int" value="1"/>
+              </Properties>
+              <Constraints>
+                <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+                  <GridBagConstraints gridX="5" gridY="0" gridWidth="1" gridHeight="1" fill="3" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="8" insetsBottom="0" insetsRight="8" anchor="10" weightX="0.0" weightY="1.0"/>
+                </Constraint>
+              </Constraints>
+            </Component>
+            <Component class="javax.swing.JCheckBox" name="considerRestrictionsCheckbox">
+              <Properties>
+                <Property name="selected" type="boolean" value="true"/>
+                <Property name="text" type="java.lang.String" value="Consider restrictions"/>
+              </Properties>
+              <Events>
+                <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="considerRestrictionsCheckboxActionPerformed"/>
+              </Events>
+              <Constraints>
+                <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+                  <GridBagConstraints gridX="10" gridY="0" gridWidth="1" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="8" anchor="13" weightX="1.0" weightY="0.0"/>
+                </Constraint>
+              </Constraints>
+            </Component>
+            <Component class="javax.swing.JButton" name="resetButton">
+              <Properties>
+                <Property name="text" type="java.lang.String" value="Reset"/>
+              </Properties>
+              <Events>
+                <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="resetButtonActionPerformed"/>
+              </Events>
+              <Constraints>
+                <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+                  <GridBagConstraints gridX="6" gridY="0" gridWidth="1" gridHeight="1" fill="0" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="10" weightX="0.0" weightY="0.0"/>
+                </Constraint>
+              </Constraints>
+            </Component>
+          </SubComponents>
+        </Container>
+        <Component class="javax.swing.JSeparator" name="jSeparator1">
+          <Constraints>
+            <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout" value="org.netbeans.modules.form.compat2.layouts.DesignGridBagLayout$GridBagConstraintsDescription">
+              <GridBagConstraints gridX="1" gridY="1" gridWidth="1" gridHeight="1" fill="2" ipadX="0" ipadY="0" insetsTop="0" insetsLeft="0" insetsBottom="0" insetsRight="0" anchor="10" weightX="1.0" weightY="0.0"/>
+            </Constraint>
+          </Constraints>
+        </Component>
+      </SubComponents>
+    </Container>
+  </SubComponents>
+</Form>

src/main/gui/net/sf/jailer/ui/pathfinder/PathGraph.java

@@ -0,0 +1,298 @@
+/*
+ * Copyright 2007 - 2018 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package net.sf.jailer.ui.pathfinder;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Set;
+
+import net.sf.jailer.datamodel.Association;
+import net.sf.jailer.datamodel.DataModel;
+import net.sf.jailer.datamodel.Table;
+import net.sf.jailer.util.Pair;
+
+/**
+ * Union of equi-length paths as directed graph.
+ * 
+ * @author Ralf Wisser
+ */
+public class PathGraph {
+
+	private final Table source;
+	private final Table destination;
+	
+	private Map<Table, Node> nodePerTable = new HashMap<Table, Node>();
+	private Map<Pair<Node, Node>, EdgeType> edgeTypes = new HashMap<Pair<Node, Node>, EdgeType>();
+	private Set<Table> visitedExcludedTables = new HashSet<Table>();
+
+	public enum EdgeType { PARENT, CHILD, ASSOCIATION, IGNORED };
+	
+	public class Node {
+		Table table;
+		int column;
+		Set<Node> next = new HashSet<Node>();
+		Set<Node> prev = new HashSet<Node>();
+
+		public String toString() {
+			return table.getName() + ":" + column;
+		}
+
+		public void collectPrevClosure(Set<Table> closure) {
+			if (!closure.contains(table)) {
+				closure.add(table);
+				for (Node p: prev) {
+					p.collectPrevClosure(closure);
+				}
+			}
+		}
+
+		public void collectNextClosure(Set<Table> closure) {
+			if (!closure.contains(table)) {
+				closure.add(table);
+				for (Node p: next) {
+					p.collectNextClosure(closure);
+				}
+			}
+		}
+	}
+
+	/**
+	 * Gets the node of a given table.
+	 * 
+	 * @param table the table
+	 * @return node representing table
+	 */
+	public Node getNode(Table table) {
+		return nodePerTable.get(table);
+	}
+
+	/**
+	 * Gets all nodes on a given column.
+	 * 
+	 * @param column the column
+	 * @return all nodes on a given column
+	 */
+	public List<Node> getNodes(int column) {
+		List<Node> result = new ArrayList<Node>();
+		for (Entry<Table, Node> e:nodePerTable.entrySet()) {
+			if (e.getValue().column == column) {
+				result.add(e.getValue());
+			}
+		}
+		return result;
+	}
+
+	/**
+	 * Gets edge-type of a given edge.
+	 * 
+	 * @param from left node of edge
+	 * @param to right node of edge
+	 * @return edge type 
+	 */
+	public EdgeType getEdgeType(Node from, Node to) {
+		Pair<Node, Node> edgeKey = new Pair<Node, Node>(from, to);
+		return edgeTypes.get(edgeKey);
+	}
+
+	/**
+     * Resets the graph to an empty graph.
+     */
+	private void reset() {
+		nodePerTable.clear();
+		edgeTypes.clear();
+	}
+	
+	/**
+     * Returns <code>true</code> if this graph is empty.
+     */
+	public boolean isEmpty() {
+		return nodePerTable.isEmpty();
+	}
+    
+	   /**
+     * Creates new Graph.
+     * @param excludedTables 
+     * @param pathStations 
+     * @param considerRestrictions 
+     */
+    public PathGraph(DataModel dataModel, Table source, Table destination, Set<Table> excludedTables, List<Table> pathStations, boolean considerRestrictions) {
+    	this(dataModel, source, destination, excludedTables, pathStations, considerRestrictions, false);
+    }
+    
+	/**
+     * Creates new Graph.
+     * @param excludedTables 
+     * @param pathStations 
+     * @param considerRestrictions 
+     */
+    public PathGraph(DataModel dataModel, Table source, Table destination, Set<Table> excludedTables, List<Table> pathStations, boolean considerRestrictions, boolean strict) {
+    	this.source = source;
+    	this.destination = destination;
+    	
+    	List<Table> stations = new ArrayList<Table>(pathStations);
+    	Node destNode;
+    	for (;;) {
+	    	visitedExcludedTables.clear();
+	    	createGraph(excludedTables, stations, visitedExcludedTables, considerRestrictions);
+	    	destNode = nodePerTable.get(this.destination);
+	    	if (destNode == null) {
+	    		// retry with shorter path
+	    		if (!stations.isEmpty() && !strict) {
+	    			stations.remove(stations.size() - 1);
+	    			continue;
+	    		}
+	    		reset();
+	    		return;
+	    	}
+	    	break;
+    	}
+    	Set<Table> destClosure = new HashSet<Table>();
+    	destNode.collectPrevClosure(destClosure);
+    	Set<Table> excluded = new HashSet<Table>(dataModel.getTables());
+    	excluded.removeAll(destClosure);
+    	excluded.addAll(excludedTables);
+    	visitedExcludedTables.clear();
+    	createGraph(excluded, stations, visitedExcludedTables, considerRestrictions);
+    	visitedExcludedTables.retainAll(excludedTables);
+    }
+
+    private void createGraph(Set<Table> excluded, List<Table> pathStations, Set<Table> visitedExTables, boolean considerRestrictions) {
+    	reset();
+
+    	Map<Table, Table> forcedSucc = new HashMap<Table, Table>();
+
+    	for (int i = 1; i < pathStations.size(); ++i) {
+    		Table a = pathStations.get(i - 1);
+    		Table b = pathStations.get(i);
+    		for (Association as: a.associations) {
+				if (!as.isIgnored() || !considerRestrictions) {
+					if (as.destination.equals(b)) {
+						forcedSucc.put(a, b);
+						break;
+					}
+    			}
+    		}
+    	}
+
+    	Set<Table> currentColumn = new HashSet<Table>();
+    	currentColumn.add(source);
+		int column = 0;
+    	Node node = new Node();
+    	node.table = source;
+    	node.column = column;
+		nodePerTable.put(source, node);
+		List<Table> stations = new LinkedList<Table>(pathStations);
+		stations.remove(source);
+		stations.remove(destination);
+		stations.removeAll(excluded);
+		Set<Table> onPath = new HashSet<Table>(pathStations);
+		onPath.add(source);
+		onPath.add(destination);
+		Set<Table> lastVisitedExTables = new HashSet<Table>();
+    	do {
+    		boolean onStation = false;
+			if (!stations.isEmpty()) {
+				Table nextStat = stations.get(0);
+				if (currentColumn.contains(nextStat)) {
+					currentColumn.clear();
+					currentColumn.add(nextStat);
+					stations.remove(0);
+					onStation = true;
+				}
+			}
+			if (!onStation) {
+				visitedExTables.addAll(lastVisitedExTables);
+			}
+			lastVisitedExTables.clear();
+    		Set<Table> nextColumn = new HashSet<Table>();
+    		for (Table table: currentColumn) {
+    			node = nodePerTable.get(table);
+				for (Association a: table.associations) {
+					if (!a.isIgnored() || !considerRestrictions
+							|| (onPath.contains(a.source) && onPath.contains(a.destination))) {
+						Table dest = a.destination;
+						if (excluded.contains(dest)) {
+							lastVisitedExTables.add(dest);
+							continue;
+						}
+						if (forcedSucc.containsKey(table) && !forcedSucc.get(table).equals(dest)) {
+							continue;
+						}
+						Node newNode = nodePerTable.get(dest);
+						if (newNode != null && newNode.column != column + 1) {
+							continue;
+						}
+						nextColumn.add(dest);
+						EdgeType type;
+						if (a.isIgnored()) {
+							type = EdgeType.IGNORED;
+						} else if (a.isInsertDestinationBeforeSource()) {
+							type = EdgeType.PARENT;
+						} else if (a.isInsertSourceBeforeDestination()) {
+							type = EdgeType.CHILD;
+						} else {
+							type = EdgeType.ASSOCIATION;
+						}
+						if (newNode == null) {
+							newNode = new Node();
+							newNode.table = dest;
+							newNode.column = column + 1;
+							nodePerTable.put(dest, newNode);
+						}
+						Pair<Node, Node> edgeKey = new Pair<Node, Node>(node, newNode);
+						EdgeType oldType = edgeTypes.get(edgeKey);
+						if (oldType != null && !oldType.equals(EdgeType.IGNORED) && !type.equals(oldType)) {
+							type = EdgeType.ASSOCIATION;
+						}
+						edgeTypes.put(edgeKey, type);
+						node.next.add(newNode);
+						newNode.prev.add(node);
+					}
+    			}
+    		}
+    		++column;
+        	currentColumn = nextColumn;
+    	} while (!currentColumn.isEmpty());
+    	visitedExTables.addAll(lastVisitedExTables);
+    }
+
+	public Set<Table> getVisitedExcludedTables() {
+		return visitedExcludedTables;
+	}
+
+	/**
+	 * Is this graph a unique non-empty path?
+	 */
+	public boolean isUnique() {
+		if (isEmpty()) {
+			return false;
+		}
+		for (int column = 0; ; ++column) {
+			int n = getNodes(column).size();
+			if (n == 0) {
+				return true;
+			} else if (n > 1) {
+				return false;
+			}
+		}
+	}
+
+}