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Posted to issues@flink.apache.org by "Xuyang Zhong (Jira)" <ji...@apache.org> on 2026/03/25 11:02:00 UTC

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

     [ https://issues.apache.org/jira/browse/FLINK-39287?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Xuyang Zhong closed FLINK-39287.
--------------------------------
    Resolution: Fixed

> 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
>            Assignee: Xuyang Zhong
>            Priority: Major
>             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
> Note: this Jira will not implement the derivation logic for all operators; this part will be driven by subsequent Jiras.



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