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https://issues.apache.org/jira/browse/FLINK-5955?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kurt Young updated FLINK-5955:
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Component/s: Table API & SQL
> Merging a list of buffered records will have problem when ObjectReuse is
> turned on
> ----------------------------------------------------------------------------------
>
> Key: FLINK-5955
> URL: https://issues.apache.org/jira/browse/FLINK-5955
> Project: Flink
> Issue Type: Bug
> Components: Table API & SQL
> Reporter: Shaoxuan Wang
> Assignee: Shaoxuan Wang
>
> Turn on ObjectReuse in MultipleProgramsTestBase:
> TestEnvironment clusterEnv = new TestEnvironment(cluster, 4, true);
> Then the tests "testEventTimeSessionGroupWindow",
> "testEventTimeSessionGroupWindow", and
> "testEventTimeTumblingGroupWindowOverTime" will fail.
> The reason is that we have buffered iterated records for group-merge. I think
> we should change the Agg merge to pair-merge, and later add group-merge when
> needed (in the future we should add rules to select either pair-merge or
> group-merge, but for now all built-in aggregates should work fine with
> pair-merge).
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