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Posted to dev@flink.apache.org by "Dawid Wysakowicz (Jira)" <ji...@apache.org> on 2020/02/20 08:23:00 UTC

[jira] [Created] (FLINK-16182) Remove invalid check in input type inference logic

Dawid Wysakowicz created FLINK-16182:
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             Summary: 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
             Fix For: 1.11.0


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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