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fix bug that dble can't find null constant column in select list (#2972)

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* fix bug that dble can't find null constant column in select list

* revert
This commit is contained in:
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2021-11-29 13:12:56 +08:00
committed by Huqing Yan
parent 5631b2a0a5
commit 0af53cc33e
2 changed files with 2 additions and 15 deletions
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src/main/java/com/actiontech/dble/plan/common/field/Field.java
+2 -10
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@@ -58,7 +58,7 @@ public abstract class Field {
case MYSQL_TYPE_DOUBLE:
return new FieldDouble(name, dbName, table, orgTable, charsetIndex, fieldLength, decimals, flags);
case MYSQL_TYPE_NULL:
return FieldNull.getInstance();
return new FieldNull(name, "", table, "", 63, 0, 0, 0);
case MYSQL_TYPE_TIMESTAMP:
return new FieldTimestamp(name, dbName, table, orgTable, charsetIndex, fieldLength, decimals, flags);
case MYSQL_TYPE_LONGLONG:
@@ -82,7 +82,7 @@ public abstract class Field {
return new FieldVarstring(name, dbName, table, orgTable, charsetIndex, fieldLength, decimals, flags);
case MYSQL_TYPE_STRING:
return new FieldString(name, dbName, table, orgTable, charsetIndex, fieldLength, decimals, flags);
/** --not support below, because select * change to string, can't get the origin type-- **/
/* --not support below, because select * change to string, can't get the origin type-- **/
case MYSQL_TYPE_ENUM:
return new FieldEnum(name, dbName, table, orgTable, charsetIndex, fieldLength, decimals, flags);
case MYSQL_TYPE_SET:
@@ -280,14 +280,6 @@ public abstract class Field {
this.charsetIndex = charsetIndex;
}
public String getJavaCharsetName() {
return javaCharsetName;
}
public void setJavaCharsetName(String javaCharsetName) {
this.javaCharsetName = javaCharsetName;
}
public long getFlags() {
return flags;
}
src/main/java/com/actiontech/dble/plan/common/field/FieldNull.java
-5
View File
@@ -12,11 +12,6 @@ import java.math.BigDecimal;
import java.math.BigInteger;
public class FieldNull extends FieldStr {
private static FieldNull instance = new FieldNull("NULL", "", "", "", 63, 0, 0, 0);
public static FieldNull getInstance() {
return instance;
}
FieldNull(String name, String dbName, String table, String orgTable, int charsetIndex, int fieldLength, int decimals, long flags) {
super(name, dbName, table, orgTable, charsetIndex, fieldLength, decimals, flags);