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https://issues.apache.org/jira/browse/HIVE-7721?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Laljo John Pullokkaran reassigned HIVE-7721:
--------------------------------------------
Assignee: Laljo John Pullokkaran
> CBO: support case statement translation to optiq
> ------------------------------------------------
>
> Key: HIVE-7721
> URL: https://issues.apache.org/jira/browse/HIVE-7721
> Project: Hive
> Issue Type: Sub-task
> Reporter: Harish Butani
> Assignee: Laljo John Pullokkaran
>
> Following query:
> {code}
> explain select case when key > '104' then null else key end as key from src
> {code}
> fails with:
> {quote}
> java.lang.RuntimeException: java.lang.RuntimeException:
> java.lang.RuntimeException: Unsupported Expression
> at
> org.apache.hadoop.hive.ql.parse.SemanticAnalyzer$OptiqBasedPlanner.getOptimizedAST(SemanticAnalyzer.java:11808)
> ....
> aused by: java.lang.RuntimeException: Unsupported Expression
> at
> org.apache.hadoop.hive.ql.optimizer.optiq.translator.RexNodeConverter.convert(RexNodeConverter.java:91)
> at
> org.apache.hadoop.hive.ql.optimizer.optiq.translator.RexNodeConverter.convert(RexNodeConverter.java:124)
> {quote}
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