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https://issues.apache.org/jira/browse/FLINK-3475?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15834268#comment-15834268
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ASF GitHub Bot commented on FLINK-3475:
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Github user fhueske commented on the issue:
https://github.com/apache/flink/pull/3111
@docete, did you check if the execution plan is similar to what I outlined
in the related JIRA issue
[FLINK-3475](https://issues.apache.org/jira/browse/FLINK-3475)?
> DISTINCT aggregate function support for SQL queries
> ---------------------------------------------------
>
> Key: FLINK-3475
> URL: https://issues.apache.org/jira/browse/FLINK-3475
> Project: Flink
> Issue Type: New Feature
> Components: Table API & SQL
> Reporter: Chengxiang Li
> Assignee: Zhenghua Gao
>
> DISTINCT aggregate function may be able to reuse the aggregate function
> instead of separate implementation, and let Flink runtime take care of
> duplicate records.
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