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https://issues.apache.org/jira/browse/FLINK-26534?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jingsong Lee reassigned FLINK-26534:
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Assignee: lincoln lee
> shuffle by sink's primary key should cover the case that input changelog
> stream has a different parallelism
> -----------------------------------------------------------------------------------------------------------
>
> Key: FLINK-26534
> URL: https://issues.apache.org/jira/browse/FLINK-26534
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / Planner
> Affects Versions: 1.15.0
> Reporter: lincoln lee
> Assignee: lincoln lee
> Priority: Minor
>
> FLINK-20370 fix the wrong result when sink primary key is not the same with
> query and introduced a new auto-keyby sink's primary key strategy for append
> stream if the sink's parallelism differs from input stream's.
> But still exists one case to be solved:
> for a changelog stream, its changelog upsert key same as sink's primary key,
> but sink's parallelism changed by user (via those sinks which implement the
> `ParallelismProvider` interface, e.g., KafkaDynamicSink), we should fix it.
> And a minor change: keyby canbe omitted when sink has single parallism
> (because none partitioner will cause worse disorder)
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