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https://issues.apache.org/jira/browse/FLINK-36095?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xintong Song updated FLINK-36095:
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Fix Version/s: (was: 2.0.0)
> KeyedLookupJoinWrapper should shuffle by input upsertKey instead of join key
> to avoid changelog disordering
> -----------------------------------------------------------------------------------------------------------
>
> Key: FLINK-36095
> URL: https://issues.apache.org/jira/browse/FLINK-36095
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / Planner
> Affects Versions: 1.20.0
> Reporter: lincoln lee
> Assignee: lincoln lee
> Priority: Major
> Labels: pull-request-available
> Fix For: 2.0-preview
>
>
> If user encounter the NDU issue caused by a lookup join and enable the
> {{TRY_RESOLVE}} mode (
> https://nightlies.apache.org/flink/flink-docs-master/docs/dev/table/concepts/determinism/#33-how-to-eliminate-the-impact-of-non-deterministic-update-in-streaming
> ), the current KeyedLookupJoinWrapper implementation use the join key as the
> shuffle key, this may lead to changelog disordering issue. It should be fixed
> to use input upsertKey(or the complete row if upsertKey is empty) instead of
> join key.
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