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https://issues.apache.org/jira/browse/HIVE-16260?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15942206#comment-15942206
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Lefty Leverenz commented on HIVE-16260:
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Changed the doc label from TODOC2.2 to TODOC2.3 (not 3.0 because this was
committed before branch-2 split off).
The fix version should also be changed to 2.3.0. I'll let someone else make
that change, though, just in case I misunderstood the new version numbers.
> Remove parallel edges of semijoin with map joins.
> -------------------------------------------------
>
> Key: HIVE-16260
> URL: https://issues.apache.org/jira/browse/HIVE-16260
> Project: Hive
> Issue Type: Task
> Reporter: Deepak Jaiswal
> Assignee: Deepak Jaiswal
> Labels: TODOC2.3
> Fix For: 2.2.0
>
> Attachments: HIVE-16260.1.patch, HIVE-16260.2.patch,
> HIVE-16260.3.patch, HIVE-16260.4.patch, HIVE-16260.5.patch
>
>
> Remove parallel edges of semijoin with map joins as they don't give any
> benefit to the query.
> Also, ensure that bloom filters are created to handle at least 1M entries and
> the semijoin is disabled if the big table has less than 1M rows.
> Both these features are configurable.
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