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Posted to dev@hive.apache.org by "Eric Hanson (JIRA)" <ji...@apache.org> on 2013/12/03 19:28:35 UTC

[jira] [Commented] (HIVE-5920) Implement vectorized support for CASE WHEN a THEN b [WHEN c THEN d]* [ELSE e] END

    [ https://issues.apache.org/jira/browse/HIVE-5920?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13837999#comment-13837999 ] 

Eric Hanson commented on HIVE-5920:
-----------------------------------

This syntax uses GenericUDFWhen internally.

> Implement vectorized support for CASE WHEN a THEN b [WHEN c THEN d]* [ELSE e] END 
> ----------------------------------------------------------------------------------
>
>                 Key: HIVE-5920
>                 URL: https://issues.apache.org/jira/browse/HIVE-5920
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Eric Hanson
>
> Implement vectorized support for the second of the two types of CASE expressions:
> CASE WHEN a THEN b [WHEN c THEN d]* [ELSE e] END 



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