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https://issues.apache.org/jira/browse/FLINK-23748?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17404851#comment-17404851
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Xintong Song commented on FLINK-23748:
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Hi [~liliwei],
The descriptions are added. Do you still want to work on this?
> Testing window TVF session window
> ---------------------------------
>
> Key: FLINK-23748
> URL: https://issues.apache.org/jira/browse/FLINK-23748
> Project: Flink
> Issue Type: Improvement
> Components: Tests
> Reporter: JING ZHANG
> Priority: Blocker
> Labels: release-testing
> Fix For: 1.14.0
>
>
> Window TVF would support SESSION window in the following case:
> # SESSION Window TVF followed by Window Aggregate.
>
> *Note, SESSION window TVF only works in limited cases currently, the
> following user cases is not supported yet:*
> # *SESSION WINDOW TVF followed by Window JOIN*
> # *SESSION WINDOW TVF followed by Window RANK***
> *BESIDES, SESSION window Aggregate does not support the following performance
> improvement yet:*
> 1. Split Distinct Aggregation
> 2. Local-global Aggregation
> 3. Mini-batch Aggregate
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