Rong Qu created DERBY-6185: ------------------------------ Summary: Query against view with "where name LIKE 'Col1' ESCAPE '\' " failed Key: DERBY-6185 URL: https://issues.apache.org/jira/browse/DERBY-6185 Project: Derby Issue Type: Bug Components: JDBC Affects Versions: 10.8.3.0, 10.8.2.2 Environment: windows 7 Reporter: Rong Qu
The error can be reproduced, 1) create table mytbl1 (name clob(10K)); 2) create table mytbl2 (name clob(10K)); 3) create view myview (name) as select t1.name from mytbl1 t1 union all select t2.name from mytbl2 t2; 4) select name from myview where name LIKE 'Col1' ESCAPE '\'; "4)" failed with error message " ERROR 42818: Comparisons between 'CLOB (UCS_BASIC)' and 'CHAR (UCS_BASIC)' are not supported. Types must be comparable. String types must also have matching collation. If collation does not match, a possible solution is to cast operands to force them to the default collation (e.g. SELECT tablename FROM sys.systables WHERE CAST(tablename AS VARCHAR(128)) = 'T1') at org.apache.derby.iapi.error.StandardException.newException(Unknown Source) at org.apache.derby.impl.sql.compile.BinaryComparisonOperatorNode.bindComparisonOperator(Unknown Source) at org.apache.derby.impl.sql.compile.PredicateList.pushExpressionsIntoSelect(Unknown Source) at org.apache.derby.impl.sql.compile.UnionNode.pushExpressions(Unknown Source) at org.apache.derby.impl.sql.compile.UnionNode.pushExpressions(Unknown Source) at org.apache.derby.impl.sql.compile.ProjectRestrictNode.pushExpressions(Unknown Source) at org.apache.derby.impl.sql.compile.FromList.pushPredicates(Unknown Source) at org.apache.derby.impl.sql.compile.SelectNode.preprocess(Unknown Source) at org.apache.derby.impl.sql.compile.DMLStatementNode.optimizeStatement(Unknown Source) at org.apache.derby.impl.sql.compile.CursorNode.optimizeStatement(Unknown Source) at org.apache.derby.impl.sql.GenericStatement.prepMinion(Unknown Source) at org.apache.derby.impl.sql.GenericStatement.prepare(Unknown Source) at org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.prepareInternalStatement(Unknown Source) ... 19 more -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira