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https://issues.apache.org/jira/browse/HIVE-12329?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14988940#comment-14988940
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Lefty Leverenz commented on HIVE-12329:
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While you're at it, could you please change the description of
*hive.limit.pushdown.memory.usage* to indicate the units? (Since the new
default is 0.1f, I'm guessing it's a fraction of ... um ... total memory or
some subset?)
Current description: "The max memory to be used for hash in RS operator for
top K selection."
It might be good to explain what RS means, too.
> Turn on limit pushdown optimization by default
> ----------------------------------------------
>
> Key: HIVE-12329
> URL: https://issues.apache.org/jira/browse/HIVE-12329
> Project: Hive
> Issue Type: Improvement
> Components: Configuration
> Reporter: Ashutosh Chauhan
> Assignee: Ashutosh Chauhan
> Attachments: HIVE-12329.patch
>
>
> Whenever applicable, this will always help, so this should be on by default.
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