[
https://issues.apache.org/jira/browse/HIVE-20296?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Zoltan Haindrich updated HIVE-20296:
------------------------------------
Attachment: HIVE-20296.03.patch
> Improve HivePointLookupOptimizerRule to be able to extract from more
> sophisticated contexts
> -------------------------------------------------------------------------------------------
>
> Key: HIVE-20296
> URL: https://issues.apache.org/jira/browse/HIVE-20296
> Project: Hive
> Issue Type: Improvement
> Components: Logical Optimizer
> Reporter: Zoltan Haindrich
> Assignee: Zoltan Haindrich
> Priority: Major
> Attachments: HIVE-20296.01.patch, HIVE-20296.01wip01.patch,
> HIVE-20296.01wip02.patch, HIVE-20296.01wip03.patch, HIVE-20296.02.patch,
> HIVE-20296.02.patch, HIVE-20296.03.patch
>
>
> Currently it could handle conditions in the form:
> {code}
> ( ( a=1 && b=1 && ... ) || (a=2 && b=2 && ...) || ... )
> {code}
> If there is some noise somewhere in the or like:
> {code}
> ( x=18 || ( a=1 && b=1 && ... ) || (a=2 && b=2 && ...) || ... )
> {code}
> it stops processing.
> https://github.com/apache/hive/blob/2cabb8da150b8fb980223fbd6c2c93b842ca3ee5/ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/rules/HivePointLookupOptimizerRule.java#L238
> HIVE-19097 right now unwinds some ors which can't be packed back; like query15
> https://github.com/apache/hive/blob/2cabb8da150b8fb980223fbd6c2c93b842ca3ee5/ql/src/test/queries/clientpositive/perf/query15.q#L14
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
