Leonard Xu created CALCITE-4563:
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Summary: Allow auxiliary SqlGroupedWindowFunction to specify
returnTypeInference
Key: CALCITE-4563
URL: https://issues.apache.org/jira/browse/CALCITE-4563
Project: Calcite
Issue Type: Improvement
Reporter: Leonard Xu
in CALCITE-2133 we allowed SqlGroupedWindowFunction to specify
returnTypeInference in its constructor, but for auxiliary
SqlGroupedWindowFunction, the returnTypeInference is fixed as
*ReturnTypes.ARG0*, we can also enable user to config it.
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