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https://issues.apache.org/jira/browse/CALCITE-3721?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17012509#comment-17012509
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Danny Chen commented on CALCITE-3721:
-------------------------------------
Thanks [~icshuo] for reporting this, for a plan rule fix, i would suggest to
give a detail plan change demo with/without your fix in the issue description
part, in order every one who opened this issue know exactly what you want to
fix.
> Filter of distinct aggregate call is lost after applying
> `AggregateExpandDistinctAggregatesRule`
> ------------------------------------------------------------------------------------------------
>
> Key: CALCITE-3721
> URL: https://issues.apache.org/jira/browse/CALCITE-3721
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.21.0
> Reporter: Shuo Cheng
> Assignee: Shuo Cheng
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.22.0
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> In `AggregateExpandDistinctAggregatesRule`, when the distinct aggregate call
> is rewritten using
> groupingSets, the filter of the distinct aggregate call itself is lost
> unexpected.
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