Zoltan Haindrich created HIVE-20692:
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Summary: IS (NOT) [TRUE|FALSE] logic functions are not folded by
Calcite
Key: HIVE-20692
URL: https://issues.apache.org/jira/browse/HIVE-20692
Project: Hive
Issue Type: Improvement
Components: CBO
Reporter: Zoltan Haindrich
Assignee: Zoltan Haindrich
Expressions like: {{not ((a>0) is not true)}} could be rewritten to {{(a>0) is
true}}.
However currently this doesn't happen because some of these functions are not
translated for Calcite.
{code}
create table t (a integer);
explain select not ((a>0) is not true) from t group by a;
[...]
expressions: (not (_col0 > 0) is not true) (type: boolean) |
[...]
{code}
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