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https://issues.apache.org/jira/browse/HIVE-12503?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15024723#comment-15024723
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Ashutosh Chauhan commented on HIVE-12503:
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I am not sure of impact of CALCITE-794 [~gopalv] may test this patch out to see
if he still sees that issue. If it still is the issue than we may need
HIVE-12508 in addition to this patch. We can keep that open as we test this
more.
> GBY-Join transpose rule may go in infinite loop
> -----------------------------------------------
>
> Key: HIVE-12503
> URL: https://issues.apache.org/jira/browse/HIVE-12503
> Project: Hive
> Issue Type: Bug
> Components: CBO, Logical Optimizer
> Affects Versions: 2.0.0
> Reporter: Ashutosh Chauhan
> Assignee: Ashutosh Chauhan
> Attachments: HIVE-12503.1.patch, HIVE-12503.patch
>
>
> This happens when pushing aggregate is not found to be any cheaper. Can be
> reproduced by running cbo_rp_auto_join1.q with flag turned on.
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