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https://issues.apache.org/jira/browse/CALCITE-6642?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ruben Q L resolved CALCITE-6642.
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Resolution: Fixed
Fixed via
[{{add1f8b}}|https://github.com/apache/calcite/commit/add1f8b8dac86bfbd8a9de5169baa97347119256]
Thanks [~cbrisson] for the patch!
> AggregateUnionTransposeRule should account for changes in nullability of
> pushed down aggregates
> -----------------------------------------------------------------------------------------------
>
> Key: CALCITE-6642
> URL: https://issues.apache.org/jira/browse/CALCITE-6642
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.38.0
> Reporter: Claude Brisson
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.39.0
>
>
> This bug affects {{AggregateUnionTransposeRule}}.
> When pushing down aggregate calls through unions, since the nullability of
> the aggregated columns may differ from one union branch to another, the
> expected nullability of the children aggregates in each union branch may
> differ from the original aggregates.
> When assertions are enabled, this does provoke a failure when the new
> aggregate relations do check whether the declared type and the expected type
> are the same.
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