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https://issues.apache.org/jira/browse/CALCITE-6680?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mihai Budiu resolved CALCITE-6680.
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Fix Version/s: 1.39.0
Resolution: Fixed
Fixed in
https://github.com/apache/calcite/commit/8b4136bbd183f10e72c2ec02bef9caf1748631c2
Thank you for the diagnostic and patch [~chrisdennis]
Thank you for the reviews [~caicancai][~nobigo]
> RexImpTable erroneously declares NullPolicy.NONE for IS_EMPTY
> -------------------------------------------------------------
>
> Key: CALCITE-6680
> URL: https://issues.apache.org/jira/browse/CALCITE-6680
> Project: Calcite
> Issue Type: Bug
> Components: core
> Reporter: Chris Dennis
> Assignee: Mihai Budiu
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.39.0
>
> Attachments: is-empty-nullable.patch
>
>
> RexImpTable implements {{IS EMPTY}} and {{IS NOT EMPTY}} using
> {{Collections.isEmpty()}} but declares them as {{NullPolicy.NONE}}. This
> causes nullable array and map columns to throw NPE at execution time when
> hitting null values. I strongly suspect that other collection operators are
> similarly misclassified and would run in to issues is used against nullable
> types.
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