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https://issues.apache.org/jira/browse/HIVE-8073?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14200023#comment-14200023
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Rui Li commented on HIVE-8073:
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Hi [~xuefuz], I've investigated all the optimizations in {{Optimizer}} and I
don't think there's any optimizer unsuitable for spark. I'm not saying they
will all work properly with spark (we need to enable more tests to catch that),
but I think the ideas behind them apply to spark as they apply to MR.
> Go thru all operator plan optimizations and disable those that are not
> suitable for Spark [Spark Branch]
> --------------------------------------------------------------------------------------------------------
>
> Key: HIVE-8073
> URL: https://issues.apache.org/jira/browse/HIVE-8073
> Project: Hive
> Issue Type: Task
> Components: Spark
> Reporter: Xuefu Zhang
> Assignee: Rui Li
>
> I have seen some optimization done in the logical plan that's not applicable,
> such as in HIVE-8054. We should go thru all those optimizaitons to identify
> if any.
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