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https://issues.apache.org/jira/browse/FLINK-31788?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17711854#comment-17711854
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Feng Jin commented on FLINK-31788:
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[~jark] This question is from a user mail.
The origin discuss link:
[https://lists.apache.org/thread/rnvw8k3636dqhdttpmf1c9colbpw9svp]
> Add back Support emitValueWithRetract for TableAggregateFunction
> ----------------------------------------------------------------
>
> Key: FLINK-31788
> URL: https://issues.apache.org/jira/browse/FLINK-31788
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / Planner
> Reporter: Feng Jin
> Priority: Major
>
> This feature was originally implemented in the old planner:
> [https://github.com/apache/flink/pull/8550/files]
> However, this feature was not implemented in the new planner , the Blink
> planner.
> With the removal of the old planner in version 1.14
> [https://github.com/apache/flink/pull/16080] , this code was also removed.
>
> We should add it back.
>
> origin discuss link:
> https://lists.apache.org/thread/rnvw8k3636dqhdttpmf1c9colbpw9svp
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