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https://issues.apache.org/jira/browse/FLINK-16182?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dawid Wysakowicz closed FLINK-16182.
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Resolution: Fixed
Fixed in 333e374883666f0f55fe23faa0f7db07dfe14b4a
> Remove invalid check in input type inference logic
> --------------------------------------------------
>
> Key: FLINK-16182
> URL: https://issues.apache.org/jira/browse/FLINK-16182
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / API
> Reporter: Dawid Wysakowicz
> Assignee: Dawid Wysakowicz
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.11.0
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> In
> {{org.apache.flink.table.types.inference.TypeInferenceUtil#inferInputTypes}}
> we force that the input type inference must never return {{NULL}} type.
> This precondition will never be satisfied when trying to infer output type
> based on surrounding info. This check is invalid anyway.
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