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Posted to issues@flink.apache.org by "Dawid Wysakowicz (Jira)" <ji...@apache.org> on 2020/04/09 07:38:00 UTC

[jira] [Created] (FLINK-17063) Make null typ be a possible result of a type inference

Dawid Wysakowicz created FLINK-17063:
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             Summary: Make null typ be a possible result of a type inference
                 Key: FLINK-17063
                 URL: https://issues.apache.org/jira/browse/FLINK-17063
             Project: Flink
          Issue Type: Improvement
          Components: Table SQL / API
            Reporter: Dawid Wysakowicz
            Assignee: Dawid Wysakowicz
             Fix For: 1.11.0


There are use cases that can benefit from making a null type a valid result of input and output type inference.

Example. We can use null type in {{VALUES}} clause for a temporary placeholder that will be later inferred based on types of other rows.



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