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https://issues.apache.org/jira/browse/HIVE-7304?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14048471#comment-14048471
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Ashutosh Chauhan commented on HIVE-7304:
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[~rhbutani] Shall we commit this one and address above concern in a follow-up
jira or do you want to take that up in this one only. I am fine either ways.
> Transitive Predicate Propagation doesn't happen properly after HIVE-7159
> ------------------------------------------------------------------------
>
> Key: HIVE-7304
> URL: https://issues.apache.org/jira/browse/HIVE-7304
> Project: Hive
> Issue Type: Bug
> Components: Query Processor
> Reporter: Harish Butani
> Assignee: Harish Butani
> Attachments: HIVE-7304.1.patch, HIVE-7304.2.patch
>
>
> The reason for the regression is that PredicateTransitivePropagate looks at
> the FilterOperator below the ReduceSink.
> SemanticAnalyzer::genNotNullFilterForJoinSourcePlan was stacking another
> FilterOp for the not null check, so only that predicate was being applied
> transitively by PredicateTransitivePropagate.
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