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https://issues.apache.org/jira/browse/FLINK-5984?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15901405#comment-15901405
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ASF GitHub Bot commented on FLINK-5984:
---------------------------------------
GitHub user shaoxuan-wang opened a pull request:
https://github.com/apache/flink/pull/3496
[FLINK-5984] [table] add resetAccumulator method for AggregateFunction
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You can merge this pull request into a Git repository by running:
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Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/3496.patch
To close this pull request, make a commit to your master/trunk branch
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This closes #3496
----
commit d60ef3e67736c6cf366a486d0c57b13874c381bd
Author: shaoxuan-wang <[email protected]>
Date: 2017-03-08T15:10:28Z
[FLINK-5984] [table] add resetAccumulator method for AggregateFunction
----
> 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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