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https://issues.apache.org/jira/browse/CALCITE-1975?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16159550#comment-16159550
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Julian Hyde commented on CALCITE-1975:
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I think the best thing would be for the Flink team to provide a set of test
cases that illustrate the semantics of their ANY type. And add method(s) to
RelDataTypeSystem to model those semantics. So other people can adopt those
semantics if they choose.
> make some method in SqlTypeFactoryImpl public
> ---------------------------------------------
>
> Key: CALCITE-1975
> URL: https://issues.apache.org/jira/browse/CALCITE-1975
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Reporter: Ruidong Li
> Assignee: Julian Hyde
>
> Some other project which use calcite may have it's own logic in
> {{leastRestrictiveByCast}} and {{leastRestrictiveSqlType}}. For example,
> Flink's {{ANY}} SqlType differs from calcite's , it'e better to implementing
> it's own logic.
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