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https://issues.apache.org/jira/browse/FLINK-5342?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15753260#comment-15753260
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godfrey he commented on FLINK-5342:
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take your point，there is a lot of work to do if we want to achieve that goal.
> Setting the parallelism automatically for operators base on cost model
> ----------------------------------------------------------------------
>
> Key: FLINK-5342
> URL: https://issues.apache.org/jira/browse/FLINK-5342
> Project: Flink
> Issue Type: Improvement
> Components: Table API & SQL
> Reporter: godfrey he
>
> On Flink table API, a query will be translated to operators without
> parallelism. And user do not know even do not care the target operators
> translated from query. So it's better to set the parallelism automatically
> for each operator base on cost model.
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