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Posted to issues@hive.apache.org by "Lefty Leverenz (JIRA)" <ji...@apache.org> on 2017/06/13 06:32:00 UTC
[jira] [Comment Edited] (HIVE-16423) Add hint to enforce semi join
optimization
[ https://issues.apache.org/jira/browse/HIVE-16423?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15980942#comment-15980942 ]
Lefty Leverenz edited comment on HIVE-16423 at 6/13/17 6:31 AM:
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Doc note: The hint and *hive.tez.dynamic.semijoin.reduction.hint.only* need to be documented in the wiki.
* [Hive on Tez | https://cwiki.apache.org/confluence/display/Hive/Hive+on+Tez]
* [Join Optimization | https://cwiki.apache.org/confluence/display/Hive/LanguageManual+JoinOptimization]
* [Configuration Properties -- Tez | https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-Tez]
Added a TODOC3.0 label.
Edit (14/May/17): HIVE-16610 removes *hive.tez.dynamic.semijoin.reduction.hint.only* before the 3.0.0 release, so that doesn't need to be documented. But the hint should still be documented, and a release note would be helpful.
Edit again (13/Jun/17): On second thought, perhaps the doc belongs here:
* [Hive Joins | https://cwiki.apache.org/confluence/display/Hive/LanguageManual+Joins]
was (Author: lefty@hortonworks.com):
Doc note: The hint and *hive.tez.dynamic.semijoin.reduction.hint.only* need to be documented in the wiki.
* [Hive on Tez | https://cwiki.apache.org/confluence/display/Hive/Hive+on+Tez]
* [Join Optimization | https://cwiki.apache.org/confluence/display/Hive/LanguageManual+JoinOptimization]
* [Configuration Properties -- Tez | https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-Tez]
Added a TODOC3.0 label.
Edit (14/May/17): HIVE-16610 removes *hive.tez.dynamic.semijoin.reduction.hint.only* before the 3.0.0 release, so that doesn't need to be documented. But the hint should still be documented, and a release note would be helpful.
> Add hint to enforce semi join optimization
> ------------------------------------------
>
> Key: HIVE-16423
> URL: https://issues.apache.org/jira/browse/HIVE-16423
> Project: Hive
> Issue Type: Improvement
> Reporter: Deepak Jaiswal
> Assignee: Deepak Jaiswal
> Labels: TODOC3.0
> Fix For: 3.0.0
>
> Attachments: HIVE-16423.1.patch, HIVE-16423.2.patch, HIVE-16423.3.patch, HIVE-16423.4.patch
>
>
> Add hints in semijoin to enforce particular semi join optimization.
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