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https://issues.apache.org/jira/browse/HIVE-14362?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zoltan Haindrich updated HIVE-14362:
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Labels: (was: TODOC2.2)
This was still not mentioned in the docs; I've added it.
> Support explain analyze in Hive
> -------------------------------
>
> Key: HIVE-14362
> URL: https://issues.apache.org/jira/browse/HIVE-14362
> Project: Hive
> Issue Type: New Feature
> Affects Versions: 2.1.0
> Reporter: Pengcheng Xiong
> Assignee: Pengcheng Xiong
> Priority: Major
> Fix For: 2.2.0
>
> Attachments: HIVE-14362.01.patch, HIVE-14362.02.patch,
> HIVE-14362.03.patch, HIVE-14362.05.patch, HIVE-14362.06.patch,
> compare_on_cluster.pdf
>
>
> Right now all the explain levels only support stats before query runs. We
> would like to have an explain analyze similar to Postgres for real stats
> after query runs. This will help to identify the major gap between
> estimated/real stats and make not only query optimization better but also
> query performance debugging easier.
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