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https://issues.apache.org/jira/browse/FLINK-39740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18083052#comment-18083052
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Roman Khachatryan commented on FLINK-39740:
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Thanks [~jubinsoni], I have a fix already:
[https://github.com/apache/flink/pull/28242]
It looks very similar - probably because we used the same model :)
Apart from that, I've included a couple of smaller fixes into the PR.
> LinkedMultiSetState updates highestSqnAndSizeState unconditionally
> ------------------------------------------------------------------
>
> Key: FLINK-39740
> URL: https://issues.apache.org/jira/browse/FLINK-39740
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / Runtime
> Affects Versions: 2.3.0
> Reporter: Roman Khachatryan
> Assignee: Roman Khachatryan
> Priority: Major
> Labels: pull-request-available
>
> In LinkedMultiSetState, highestSqnAndSizeState tracks the highest SQN. It
> grows monotinically and is used when linking rows in a double-linked list.
> To preserve monotonicity, it should only be incremented on new rows.
> However, it is currently updated (to a lower value) when a row is replaced,
> breaking the invariant.
> Linking of the next row added will be broken.
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