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Posted to dev@hive.apache.org by "Ashutosh Chauhan (JIRA)" <ji...@apache.org> on 2014/07/01 05:46:25 UTC
[jira] [Commented] (HIVE-7304) Transitive Predicate Propagation
doesn't happen properly after HIVE-7159
[ https://issues.apache.org/jira/browse/HIVE-7304?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14048471#comment-14048471 ]
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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