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Posted to issues@hive.apache.org by "Lefty Leverenz (JIRA)" <ji...@apache.org> on 2015/06/02 00:51:17 UTC
[jira] [Commented] (HIVE-1538) FilterOperator is applied twice with
ppd on.
[ https://issues.apache.org/jira/browse/HIVE-1538?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14568180#comment-14568180 ]
Lefty Leverenz commented on HIVE-1538:
--------------------------------------
Doc note: This added *hive.ppd.remove.duplicatefilters* to HiveConf.java. It needs to be documented in the wiki.
* [Configuration Properties | https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties]
It also needs an appropriate description, as [~apivovarov] pointed out in a message to the dev@hive mailing list:
* ["hive.ppd.remove.duplicatefilters description is incorrect. What is the correct one?" | http://mail-archives.apache.org/mod_mbox/hive-dev/201506.mbox/%3cCAKKt98Q-cOrDBeQD+9Bbsy1+t9b60SzwA7XFgsYQPSp1MRScqA@mail.gmail.com%3e]
> FilterOperator is applied twice with ppd on.
> --------------------------------------------
>
> Key: HIVE-1538
> URL: https://issues.apache.org/jira/browse/HIVE-1538
> Project: Hive
> Issue Type: Bug
> Components: Query Processor
> Reporter: Amareshwari Sriramadasu
> Assignee: Amareshwari Sriramadasu
> Fix For: 0.8.0
>
> Attachments: patch-1538-1.txt, patch-1538-2.txt, patch-1538-3.txt, patch-1538-4.txt, patch-1538.txt
>
>
> With hive.optimize.ppd set to true, FilterOperator is applied twice. And it seems second operator is always filtering zero rows.
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