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From "Zoltan Haindrich (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-20296) Improve HivePointLookupOptimizerRule to be able to extract from more sophisticated contexts
Date Mon, 27 Aug 2018 10:59:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-20296?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Zoltan Haindrich updated HIVE-20296:
------------------------------------
    Attachment: HIVE-20296.01.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
>
>
> 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



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