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Posted to issues@spark.apache.org by "Jungtaek Lim (Jira)" <ji...@apache.org> on 2026/03/18 01:16:00 UTC

[jira] [Assigned] (SPARK-55973) Optimization around state in stream-stream join with LeftSemi join type

     [ https://issues.apache.org/jira/browse/SPARK-55973?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jungtaek Lim reassigned SPARK-55973:
------------------------------------

    Assignee: Jungtaek Lim

> Optimization around state in stream-stream join with LeftSemi join type
> -----------------------------------------------------------------------
>
>                 Key: SPARK-55973
>                 URL: https://issues.apache.org/jira/browse/SPARK-55973
>             Project: Spark
>          Issue Type: Improvement
>          Components: Structured Streaming
>    Affects Versions: 4.2.0
>            Reporter: Jungtaek Lim
>            Assignee: Jungtaek Lim
>            Priority: Major
>              Labels: pull-request-available
>
> We figured out there are still a couple paths of potential optimizations which could either bypass buffering rows or evict the state rows much earlier than now.
> This ticket tracks the effort to introduce the optimizations.



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