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https://issues.apache.org/jira/browse/CALCITE-6993?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17948364#comment-17948364
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Mihai Budiu commented on CALCITE-6993:
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This may break a lot of existing tests
> Enhance the digest of Sarg to show whether the collection type is nullable
> --------------------------------------------------------------------------
>
> Key: CALCITE-6993
> URL: https://issues.apache.org/jira/browse/CALCITE-6993
> Project: Calcite
> Issue Type: Bug
> Reporter: xiong duan
> Priority: Major
>
> The issue was discovered at [https://github.com/apache/calcite/pull/4345.]
> For example in unit test testMakeInReturnsSearchForArrayLiterals:
> {code:java}
> [100:INTEGER, 200:INTEGER]:INTEGER NOT NULL ARRAY,[300:INTEGER,
> 400:INTEGER]:INTEGER NOT NULL ARRAY]:INTEGER NOT NULL ARRAY
> Can be simplified to：
> [100, 200],[300, 400]:INTEGER NOT NULL ARRAY NOT NULL{code}
> 1: The repeated element types do not necessarily need to be output.
> 2: It is necessary to add the nullable information output for the Array.
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