Julian Hyde created CALCITE-907:
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Summary: Add AggregateExchangeTransposeRule
Key: CALCITE-907
URL: https://issues.apache.org/jira/browse/CALCITE-907
Project: Calcite
Issue Type: Bug
Reporter: Julian Hyde
Assignee: Julian Hyde
A rule that would recognize an Aggregate on top of an Exchange and push down
the aggregation. The result is a local Aggregate followed by an Exchange
followed by a summarizing Aggregate.
It would exploit SqlSplittableAggFunction, similar to CALCITE-751.
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