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From "Jitendra Nath Pandey (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-5759) Implement vectorized support for COALESCE conditional expression
Date Wed, 12 Feb 2014 19:01:21 GMT

    [ https://issues.apache.org/jira/browse/HIVE-5759?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13899436#comment-13899436
] 

Jitendra Nath Pandey commented on HIVE-5759:
--------------------------------------------

Review board entry: https://reviews.apache.org/r/18025/

> Implement vectorized support for COALESCE conditional expression
> ----------------------------------------------------------------
>
>                 Key: HIVE-5759
>                 URL: https://issues.apache.org/jira/browse/HIVE-5759
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Eric Hanson
>            Assignee: Jitendra Nath Pandey
>         Attachments: HIVE-5759.1.patch
>
>
> Implement full, end-to-end support for COALESCE 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.
> This is lower priority than IF and CASE but it is still a fairly popular expression.



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