Zoltan Haindrich created HIVE-20712:
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Summary: 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
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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