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https://issues.apache.org/jira/browse/FLINK-5984?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15902861#comment-15902861
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ASF GitHub Bot commented on FLINK-5984:
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Github user twalthr commented on the issue:
https://github.com/apache/flink/pull/3496
@fhueske and @shaoxuan-wang. I will rebase and merge this.
> Add resetAccumulator method for AggregateFunction
> -------------------------------------------------
>
> Key: FLINK-5984
> URL: https://issues.apache.org/jira/browse/FLINK-5984
> Project: Flink
> Issue Type: Improvement
> Components: Table API & SQL
> Reporter: Timo Walther
> Assignee: Shaoxuan Wang
>
> Right now we have to create a new accumulator object if we just want to reset
> it. We should allow passing the old one as a {{reuse}} object to
> {{AggregateFunction#createAccumulator}}. The aggregate function then can
> decide if it wants to create a new object or reset the old one.
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