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https://issues.apache.org/jira/browse/DRILL-6173?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16458158#comment-16458158
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ASF GitHub Bot commented on DRILL-6173:
---------------------------------------
Github user asfgit closed the pull request at:
https://github.com/apache/drill/pull/1216
> Support transitive closure during filter push down and partition pruning
> ------------------------------------------------------------------------
>
> Key: DRILL-6173
> URL: https://issues.apache.org/jira/browse/DRILL-6173
> Project: Apache Drill
> Issue Type: Improvement
> Components: Query Planning & Optimization
> Affects Versions: 1.12.0
> Reporter: Vitalii Diravka
> Assignee: Vitalii Diravka
> Priority: Major
> Labels: doc-impacting, ready-to-commit
> Fix For: 1.14.0
>
>
> There is Calcite rule JoinPushTransitivePredicatesRule but it does not work
> in Drill.
> Applying it in Drill will allow for equi-join queries to push filter
> condition from one table to another:
> {code:sql}
> select *
> from A, B
> where
> A.id = B.id and
> B.id = 100
> {code}
> In that case it is possible that Scan operator for A table will not scan all
> data.
> For table A it can lead for applying:
> 1. [Partition pruning for Hive tables and partiotion/directory pruning for
> file system
> tables|https://drill.apache.org/docs/partition-pruning-introduction/]
> 2. [Parquet filter
> pushdown|https://drill.apache.org/docs/parquet-filter-pushdown/]
>
> Note: transitive closure doesn't work for some cases, these Calcite issues
> can resolve them:
> CALCITE-1048, CALCITE-2274, CALCITE-2275, CALCITE-2241.
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