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Posted to issues@flink.apache.org by "Fabian Hueske (JIRA)" <ji...@apache.org> on 2016/05/22 14:54:12 UTC
[jira] [Commented] (FLINK-3586) Risk of data overflow while use
sum/count to calculate AVG value
[ https://issues.apache.org/jira/browse/FLINK-3586?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15295591#comment-15295591 ]
Fabian Hueske commented on FLINK-3586:
--------------------------------------
I have a fix for this issue and would like to take it over. Please let me know if that's not OK with you, [~chengxiang li]. Thanks!
> Risk of data overflow while use sum/count to calculate AVG value
> ----------------------------------------------------------------
>
> Key: FLINK-3586
> URL: https://issues.apache.org/jira/browse/FLINK-3586
> Project: Flink
> Issue Type: Sub-task
> Components: Table API
> Reporter: Chengxiang Li
> Assignee: Chengxiang Li
> Priority: Minor
>
> Now, we use {{(sum: Long, count: Long}} to store AVG partial aggregate data, which may have data overflow risk, we should use unbounded data type(such as BigInteger) to store them for necessary data types.
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