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https://issues.apache.org/jira/browse/CALCITE-7832?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mihai Budiu closed CALCITE-7832.
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Resolution: Won't Fix
Apparently the version of ARRAY_AGG used in Calcite DOES ignore NULL values, so
this issue is incorrect. Other SQL dialects behave differently.
> AggregateCaseToFilterRule should not be applied to ARRAY_AGG
> ------------------------------------------------------------
>
> Key: CALCITE-7832
> URL: https://issues.apache.org/jira/browse/CALCITE-7832
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.42.0
> Reporter: Mihai Budiu
> Assignee: Mihai Budiu
> Priority: Minor
>
> CALCITE-7330 handles this for user-defined aggregates. But the same
> reasoning is valid for ARRAY_AGG, which does *not* ignore NULLs.
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