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From "Prasanth J (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-7491) Stats annotation fails to evaluate constant expressions in filter operator
Date Thu, 24 Jul 2014 21:56:39 GMT

    [ https://issues.apache.org/jira/browse/HIVE-7491?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14073712#comment-14073712
] 

Prasanth J commented on HIVE-7491:
----------------------------------

The test failures are not related.

> Stats annotation fails to evaluate constant expressions in filter operator
> --------------------------------------------------------------------------
>
>                 Key: HIVE-7491
>                 URL: https://issues.apache.org/jira/browse/HIVE-7491
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Query Processor, Statistics
>    Affects Versions: 0.14.0
>            Reporter: Prasanth J
>            Assignee: Prasanth J
>             Fix For: 0.13.0
>
>         Attachments: HIVE-7491.1.patch, HIVE-7491.2.patch
>
>
> HIVE-5369 added stats annotation to operator plan. The filter operator evaluates all
expression node descriptors and applies rules. It always returns 0 for constant expressions
like 'select * from table where true' or 'select * from table where true=true' etc. 



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