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https://issues.apache.org/jira/browse/FLINK-18168?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Timo Walther closed FLINK-18168.
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Fix Version/s: 1.11.1
1.12.0
1.10.2
Resolution: Fixed
Fixed in 1.12.0: 581fabe7df12961d20753dff8947dec07cbb2c56
Fixed in 1.11.1: f5ac8c352b7fb5aff5a78cffa348f72bd8492509
Fixed in 1.10.2: 23ad7e33117b7c02b28fda77596b12668b5117c1
> Error results when use UDAF with Object Array return type
> ---------------------------------------------------------
>
> Key: FLINK-18168
> URL: https://issues.apache.org/jira/browse/FLINK-18168
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / Runtime
> Reporter: Zou
> Assignee: Zou
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.10.2, 1.12.0, 1.11.1
>
>
> I get error results when I use an UDAF with Object Array return type (e.g.
> Row[]). I find that the problem is we reuse 'reuseArray' as the return value
> of ObjectArrayConverter.toBinaryArray(). It leads to 'prevAggValue' and
> 'newAggValue' in GroupAggFunction.processElement() contains exactly the same
> BinaryArray, so 'equaliser.equalsWithoutHeader(prevAggValue, newAggValue)' is
> always true.
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