[jira] [Commented] (HIVE-5757) Implement vectorized support for CASE

["Eric Hanson (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-5757?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13838390#comment-13838390 ] 

Eric Hanson commented on HIVE-5757:
-----------------------------------

I decided to use the vectorized UDF adaptor for both GenericUDFWhen and GenericUDFCase. This is a short patch so I'm going to do them both under this JIRA.

> 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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