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https://issues.apache.org/jira/browse/SPARK-33211?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Cheng Su updated SPARK-33211:
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Parent: SPARK-32883
Issue Type: Sub-task (was: Improvement)
> Early state store eviction for left semi stream-stream join
> -----------------------------------------------------------
>
> Key: SPARK-33211
> URL: https://issues.apache.org/jira/browse/SPARK-33211
> Project: Spark
> Issue Type: Sub-task
> Components: Structured Streaming
> Affects Versions: 3.1.0
> Reporter: Cheng Su
> Priority: Minor
>
> As a followup from discussion
> [https://github.com/apache/spark/pull/30076/files/3918727a08c8d0d4c65ccc8ea902f77051b78b1d#r508926034]
> and [https://github.com/apache/spark/pull/30076#discussion_r509222802] , for
> left semi stream-stream join, the matched left side rows can be evicted from
> left state store immediately, without waiting for to be below watermark.
> However it needs more thought for how to implement efficiently to not iterate
> all values if watermark predicate is on key.
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