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https://issues.apache.org/jira/browse/CALCITE-6560?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17885473#comment-17885473
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Julian Hyde commented on CALCITE-6560:
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The bug exists in main. I have logged CALCITE-6602. It is not caused by this
PR, so I will go ahead and merge before 1.38.
> Add supportsNegativeScale in RelDataTypeSystem
> -----------------------------------------------
>
> Key: CALCITE-6560
> URL: https://issues.apache.org/jira/browse/CALCITE-6560
> Project: Calcite
> Issue Type: Improvement
> Reporter: xiong duan
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.38.0
>
>
> [https://www.postgresql.org/docs/current/datatype-numeric.html]
> According to the document, a numeric column with a negative scale can be
> declared beginning in PostgreSQL 15. This PR will add some tests to cover
> supportsNegativeScale is false and will throw an exception if set
> supportsNegativeScale is true.
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