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https://issues.apache.org/jira/browse/HIVE-4042?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13595404#comment-13595404
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Ashutosh Chauhan commented on HIVE-4042:
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There is still a problem with this patch. The query which Vinod posted on
HIVE-3784 will result in more MR jobs than needed if this gets checked in,
which is a performance regression. To solve that we should default
{{hive.auto.convert.join.noconditionaltask}} to true. Whats your thought for
that property ?
> ignore mapjoin hint
> -------------------
>
> Key: HIVE-4042
> URL: https://issues.apache.org/jira/browse/HIVE-4042
> Project: Hive
> Issue Type: Improvement
> Components: Query Processor
> Reporter: Namit Jain
> Assignee: Namit Jain
> Attachments: hive.4042.1.patch, hive.4042.2.patch, hive.4042.3.patch,
> hive.4042.4.patch, hive.4042.5.patch, hive.4042.6.patch, hive.4042.7.patch,
> hive.4042.8.patch
>
>
> After HIVE-3784, in a production environment, it can become difficult to
> deploy since a lot of production queries can break.
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