yux created FLINK-36854:
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Summary: Column comments and default expressions gone after being
transformed
Key: FLINK-36854
URL: https://issues.apache.org/jira/browse/FLINK-36854
Project: Flink
Issue Type: Bug
Components: Flink CDC
Affects Versions: cdc-3.2.1
Reporter: yux
Currently, transform operator will swallow metadata of projected columns,
including comments and default expressions, which isn't ideal. This could be
fixed by modifying generateProjection method in TransformParser.
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