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https://issues.apache.org/jira/browse/HIVE-5757?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eric Hanson updated HIVE-5757:
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Summary: Implement vectorized support for CASE (was: Implement vectorized
support for CASE a WHEN b THEN c [WHEN d THEN e]* [ELSE f] END )
> Implement vectorized support for CASE
> -------------------------------------
>
> Key: HIVE-5757
> URL: https://issues.apache.org/jira/browse/HIVE-5757
> Project: Hive
> Issue Type: Sub-task
> Reporter: Eric Hanson
> Assignee: Eric Hanson
>
> Implement full, end-to-end support for CASE in vectorized mode, including new
> VectorExpression class(es), VectorizationContext translation to a
> VectorExpression, and unit tests for these, as well as end-to-end ad hoc
> testing. An end-to-end .q test is recommended but optional.
> This is high priority because CASE is a fairly popular expression.
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