[jira] [Created] (FLINK-36956) Pipeline transform should deduce PK column types to be NOT NULL

[yux (Jira)]

yux created FLINK-36956:
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             Summary: Pipeline transform should deduce PK column types to be 
NOT NULL
                 Key: FLINK-36956
                 URL: https://issues.apache.org/jira/browse/FLINK-36956
             Project: Flink
          Issue Type: Bug
          Components: Flink CDC
    Affects Versions: cdc-3.2.1
            Reporter: yux


Currently, specifying primary key columns in Transform block does not affect 
its nullability attribute. However, most structured sink databases do not allow 
appointing a NULLable column as PK.

Setting PK attribute in transform rules also make these columns NOT NULL 
implicitly would make more sense.



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