godfrey he created FLINK-20673:
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Summary: ExecNode#getOutputType method should return LogicalType
instead of RowType
Key: FLINK-20673
URL: https://issues.apache.org/jira/browse/FLINK-20673
Project: Flink
Issue Type: Sub-task
Components: Table SQL / Planner
Reporter: godfrey he
Currently, {{ExecNode#getOutputType}} always returns {{RowType}}. But some
nodes do not return {{RowData}}, such as {{BatchExecSink}} and
{{StreamExecSink}}. The output type of {{ExecNode}} should be consistent with
the type parameter {{T}}. So {{ExecNode#getOutputType}} should return
{{LogicalType}} instead of {{RowType}}, each subclass cast the {{LogicalType}}
to specific type when using it.
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