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https://issues.apache.org/jira/browse/HIVE-21614?focusedWorklogId=815165&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-815165
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ASF GitHub Bot logged work on HIVE-21614:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 10/Oct/22 10:44
            Start Date: 10/Oct/22 10:44
    Worklog Time Spent: 10m 
      Work Description: dengzhhu653 commented on PR #2484:
URL: https://github.com/apache/hive/pull/2484#issuecomment-1273123268

   Hi @hankfanchiu, sorry for the inconvenience. Are you still working on this 
issue now?




Issue Time Tracking
-------------------

    Worklog Id:     (was: 815165)
    Time Spent: 1h 50m  (was: 1h 40m)

> 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
>            Assignee: Hank Fanchiu
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 1h 50m
>  Remaining Estimate: 0h
>
> 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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