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https://issues.apache.org/jira/browse/FLINK-18996?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17703443#comment-17703443
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Lyn Zhang commented on FLINK-18996:
-----------------------------------
[~lincoln.86xy] [~charles-tan] The watermark represent all records that the
rowtime < watermark have been arrived. So I think when the watermark has over
the right bound of the interval join, the cleanup logic can be executed safely.
I don't know about the background of the minCleanUpInterval, when I remove it,
the result is expected for me. I hope to know whether removing
minCleanUpInterval is enough and safe.
> Avoid disorder for time interval join
> -------------------------------------
>
> Key: FLINK-18996
> URL: https://issues.apache.org/jira/browse/FLINK-18996
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / Runtime
> Reporter: Benchao Li
> Priority: Major
> Labels: auto-deprioritized-critical, auto-deprioritized-major
> Fix For: 1.17.0
>
>
> Currently, the time interval join will produce data with rowtime later than
> watermark. If we use the rowtime again in downstream, e.t. window
> aggregation, we'll lose some data.
>
> reported from user-zh:
> [http://apache-flink.147419.n8.nabble.com/Re-flink-interval-join-tc4458.html#none]
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