[jira] Commented: (HIVE-1750) Remove Partition Filtering Conditions when Possible

["Ted Yu (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-1750?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12927285#action_12927285 ] 

Ted Yu commented on HIVE-1750:
------------------------------

Should #PartitionConditionRemover.java# be removed from the patch ?

> Remove Partition Filtering Conditions when Possible
> ---------------------------------------------------
>
>                 Key: HIVE-1750
>                 URL: https://issues.apache.org/jira/browse/HIVE-1750
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Siying Dong
>            Assignee: Siying Dong
>         Attachments: HIVE-1750.1.patch
>
>
> For some simple queries, partition filtering constraints take 8% of CPU time (now 16% since we filter twice) even if the result is always true. When possible, we should remove these constraints to save CPU times.

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