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https://issues.apache.org/jira/browse/CALCITE-6719?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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xiong duan closed CALCITE-6719.
-------------------------------
Resolution: Duplicate
Duplicate with CALCITE-6711.
> CODE_POINTS_TO_STRING、CODE_POINTS_TO_BYTES and TO_CODE_POINTS's return type
> should be nullable when return the NULL value
> -------------------------------------------------------------------------------------------------------------------------
>
> Key: CALCITE-6719
> URL: https://issues.apache.org/jira/browse/CALCITE-6719
> Project: Calcite
> Issue Type: Bug
> Reporter: xiong duan
> Priority: Major
> Fix For: 1.39.0
>
>
> For example:
> {code:java}
> code_points_to_bytes(array[null]); reuturn null but the return data type is
> non-nullable
> code_points_to_string(array[null]); reuturn null but the return data type is
> non-nullable
> to_code_points(''); reuturn null reuturn null but the return data type is
> non-nullable{code}
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