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https://issues.apache.org/jira/browse/CALCITE-3249?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated CALCITE-3249:
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Labels: pull-request-available (was: )
> Substitution#getRexShuttle does not consider RexLiteral
> -------------------------------------------------------
>
> Key: CALCITE-3249
> URL: https://issues.apache.org/jira/browse/CALCITE-3249
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Reporter: jin xing
> Assignee: jin xing
> Priority: Minor
> Labels: pull-request-available
>
> Current {{Substitution#getRexShuttle}} does not take {{RexLiteral}} into
> consideration.
> Thus below query & mv fails matching:
> {code:java}
> MV:
> select deptno, sum(salary), sum(commission), sum(k)
> from
> (select deptno, salary, commission, 100 as k
> from emps)
> group by deptno
> Query:
> select deptno, sum(salary), sum(k)
> from
> (select deptno, salary, 100 as k
> from emps)
> group by deptno
> {code}
> The root cause is that {{ProjectToProjectUnifyRule}} compensates a
> {{Project}} which contains {{RexLiteral}}, but
> {{AggregateOnProjectToAggregateUnifyRule}} works only when the {{Project}} in
> query is a mapping
> https://github.com/apache/calcite/blob/master/core/src/main/java/org/apache/calcite/plan/SubstitutionVisitor.java#L1357
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