[jira] [Created] (FLINK-39287) Introduce FlinkRelMdImmutableColumns to implement the derivation logic of some simple nodes

Mon, 23 Mar 2026 00:36:15 -0700 

Xuyang Zhong created FLINK-39287:
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             Summary: Introduce FlinkRelMdImmutableColumns to implement the 
derivation logic of some simple nodes
                 Key: FLINK-39287
                 URL: https://issues.apache.org/jira/browse/FLINK-39287
             Project: Flink
          Issue Type: Sub-task
          Components: Table SQL / Planner
    Affects Versions: 2.3.0
            Reporter: Xuyang Zhong
             Fix For: 2.3.0


# Introduce FlinkRelMdImmutableColumns to implement the derivation logic of 
some simple nodes
 # Update the logic about join to infer upsert key with immutable columns in 
FlinkRelMdUniqueKeys



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