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https://issues.apache.org/jira/browse/FLINK-41065?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Timo Walther closed FLINK-41065.
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Fix Version/s: 2.5.0
Release Note: Custom type inference for PTFs can now exclude state entries
when the StateTypeStrategy returns Optional.empty() instead of throwing an
error.
Resolution: Fixed
Fixed in master: 2b71c2f89651763059a082a1df2c740b66e3e421
> Improve TypeInferenceUtil for built-in PTFs
> -------------------------------------------
>
> Key: FLINK-41065
> URL: https://issues.apache.org/jira/browse/FLINK-41065
> Project: Flink
> Issue Type: Sub-task
> Components: Table SQL / Planner
> Reporter: Timo Walther
> Assignee: Timo Walther
> Priority: Major
> Labels: pull-request-available
> Fix For: 2.5.0
>
>
> Built-in PTFs such as DEDUPLICATE_KEEP_FIRST (which is currently under
> development) need more flexible state declarations. While they should still
> be able to declare all possible state, they need a way of skipping state in
> case it is not required.
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