fix local name set definition to use struct

go/libraries/doltcore/sqle/database.go

@@ -1690,7 +1690,7 @@ func (db Database) GetAllTableNames(ctx *sql.Context, showSystemTables bool) ([]
 func (db Database) getAllTableNames(ctx *sql.Context, root doltdb.RootValue, includeGeneratedSystemTables bool, includeRootObjects bool, includeNonlocalTables readNonlocalTablesFlag) ([]string, error) {
 	var err error
 	var result []string
-	localNameSet := map[string]any{}
+	localNameSet := map[string]struct{}{}
 	// If we are in a schema-enabled session and the schema name is not set, we need to union all table names in all
 	// schemas in the search_path
 	if resolve.UseSearchPath && db.schemaName == "" {
@@ -1707,7 +1707,7 @@ func (db Database) getAllTableNames(ctx *sql.Context, root doltdb.RootValue, inc
 			return nil, err
 		}
 		for _, nameStr := range result {
-			localNameSet[nameStr] = nil
+			localNameSet[nameStr] = struct{}{}
 		}
 	}