xiong duan created CALCITE-6874:
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Summary: FilterCalcMergeRule/ProjectCalcMergeRule should not merge
a Filter/Project to Calc when it contains Subquery
Key: CALCITE-6874
URL: https://issues.apache.org/jira/browse/CALCITE-6874
Project: Calcite
Issue Type: Bug
Reporter: xiong duan
Currently, if a Project or a Filter contains a Subquery, it may be merged into
Calc. However, Calc is currently unable to handle subqueries.
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