Vlad Rozov created HIVE-21614:
---------------------------------

             Summary: Derby does not support CLOB comparisons
                 Key: HIVE-21614
                 URL: https://issues.apache.org/jira/browse/HIVE-21614
             Project: Hive
          Issue Type: Bug
          Components: Metastore
    Affects Versions: 2.3.4, 3.0.0
            Reporter: Vlad Rozov


HiveMetaStoreClient.listTableNamesByFilter() with non empty filter causes 
exception with Derby DB:
{noformat}
Caused by: ERROR 42818: Comparisons between 'CLOB (UCS_BASIC)' and 'CLOB 
(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.iapi.error.StandardException.newException(Unknown 
Source)
        at 
org.apache.derby.impl.sql.compile.BinaryComparisonOperatorNode.bindComparisonOperator(Unknown
 Source)
        at 
org.apache.derby.impl.sql.compile.BinaryComparisonOperatorNode.bindExpression(Unknown
 Source)
        at 
org.apache.derby.impl.sql.compile.BinaryOperatorNode.bindExpression(Unknown 
Source)
        at 
org.apache.derby.impl.sql.compile.BinaryLogicalOperatorNode.bindExpression(Unknown
 Source)
        at org.apache.derby.impl.sql.compile.AndNode.bindExpression(Unknown 
Source)
        at org.apache.derby.impl.sql.compile.SelectNode.bindExpressions(Unknown 
Source)
        at 
org.apache.derby.impl.sql.compile.DMLStatementNode.bindExpressions(Unknown 
Source)
        at org.apache.derby.impl.sql.compile.DMLStatementNode.bind(Unknown 
Source)
        at org.apache.derby.impl.sql.compile.CursorNode.bindStatement(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)
        ... 42 more
{noformat}



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