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https://issues.apache.org/jira/browse/HIVE-12478?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15106772#comment-15106772
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Jesus Camacho Rodriguez commented on HIVE-12478:
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[~jpullokkaran], could you take a look at the current version of the patch?
Finally, I had to store state about transitive inference in the operator
itself, it was the only reasonable way of implementing exhaustive PPD,
inference and constant propagation using HepPlanner.
> Improve Hive/Calcite Trasitive Predicate inference
> --------------------------------------------------
>
> Key: HIVE-12478
> URL: https://issues.apache.org/jira/browse/HIVE-12478
> Project: Hive
> Issue Type: Bug
> Affects Versions: 2.0.0, 2.1.0
> Reporter: Laljo John Pullokkaran
> Assignee: Jesus Camacho Rodriguez
> Attachments: HIVE-12478.01.patch, HIVE-12478.02.patch,
> HIVE-12478.03.patch, HIVE-12478.04.patch, HIVE-12478.05.patch,
> HIVE-12478.06.patch, HIVE-12478.07.patch, HIVE-12478.08.patch,
> HIVE-12478.patch
>
>
> HiveJoinPushTransitivePredicatesRule does not pull up predicates for
> transitive inference if they contain more than one column.
> EXPLAIN select * from srcpart join (select ds as ds, ds as `date` from
> srcpart where (ds = '2008-04-08' and value=1)) s on (srcpart.ds = s.ds);
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