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https://issues.apache.org/jira/browse/HIVE-20712?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zoltan Haindrich updated HIVE-20712:
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Attachment: HIVE-20712.01.patch
> HivePointLookupOptimizer should extract deep cases
> --------------------------------------------------
>
> Key: HIVE-20712
> URL: https://issues.apache.org/jira/browse/HIVE-20712
> Project: Hive
> Issue Type: Improvement
> Reporter: Zoltan Haindrich
> Assignee: Zoltan Haindrich
> Priority: Major
> Attachments: HIVE-20712.01.patch, HIVE-20712.01.patch
>
>
> currently IN extraction stops at the first level; as a result for the
> following query, the nested INs are not closed back.
> {code}
> create table t(a integer);
> create table t2(b integer);
> insert into t values (1),(2),(3),(4);
> insert into t2 values (1),(2),(3),(4);
> explain
> select * from t,t2 where
> a*a=b+3
> and
> a in (1,2,3,4)
> and
> b in (1,2,3,4)
> and (
> (a in (1,2) and b in (1,2) ) or
> (a in (2,3) and b in (2,3) )
> )
> ;
> {code}
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