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https://issues.apache.org/jira/browse/FLINK-22896?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17358374#comment-17358374
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Jark Wu commented on FLINK-22896:
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The community had some discussion to use query hint to support operator level
parallelism.
> Flink sql supports parallelism at the operator level
> ----------------------------------------------------
>
> Key: FLINK-22896
> URL: https://issues.apache.org/jira/browse/FLINK-22896
> Project: Flink
> Issue Type: New Feature
> Components: Table SQL / Runtime
> Reporter: Fangliang Liu
> Priority: Major
>
> Now DataStream API supports setting parallelism for operators through
> setParallelism(),
> But Table API&SQL can only use global parallelism.
> We should let the Table API&SQL also have the ability to set the appropriate
> degree of parallelism for each operator on the generated execution graph.
> CC [~becket_qin],[~jark],Looking forward to your reply, Thanks.
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