[jira] [Created] (FLINK-22601) PushWatermarkIntoScan should produce digest created by Expression

[Shang Yuanchun (Jira)]

Jingsong Lee created FLINK-22601:
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             Summary: PushWatermarkIntoScan should produce digest created by Expression
                 Key: FLINK-22601
                 URL: https://issues.apache.org/jira/browse/FLINK-22601
             Project: Flink
          Issue Type: Bug
            Reporter: Jingsong Lee
             Fix For: 1.14.0


In PushWatermarkIntoTableSourceScanRuleBase, the digest is created by RexNode instead of Expression, RexNode rely on field index but Expression rely on field name.

We should adjust it to names.



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