Jingsong Lee created FLINK-13902:
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Summary: Can not use index to convert FieldReferenceExpression to
RexNode
Key: FLINK-13902
URL: https://issues.apache.org/jira/browse/FLINK-13902
Project: Flink
Issue Type: Bug
Components: Table SQL / Planner
Reporter: Jingsong Lee
Now, we can not use inputCount+inputIndex+FieldIndex to construct rex input
reference of calcite.
See QueryOperationConverter.SingleRelVisitor.visit(AggregateQueryOperation).
Calcite will shuffle the output order of groupings.(See RelBuilder.aggregate,
it use ImmutableBitSet to store groupings) So the output fields order will be
changed too. This lead to the output fields orders of AggregateOperationFactory
is different from calcite output orders.
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