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https://issues.apache.org/jira/browse/FLINK-33951?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17801639#comment-17801639
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Jacky Lau commented on FLINK-33951:
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[~xuyangzhong] yeap, not a bug.However, this might seem strange to developers.
We can transform it into function-level checks.
> should use aggCallNeedRetractions instead of needRetraction to check retract
> method, orelse throw not implement retract method
> ------------------------------------------------------------------------------------------------------------------------------
>
> Key: FLINK-33951
> URL: https://issues.apache.org/jira/browse/FLINK-33951
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / Planner
> Affects Versions: 1.19.0
> Reporter: Jacky Lau
> Priority: Major
> Fix For: 1.19.0
>
>
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