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https://issues.apache.org/jira/browse/CALCITE-2820?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16784907#comment-16784907
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Steven Phillips commented on CALCITE-2820:
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We have a use case that involves canonicalizing queries, and reducing sum to
sum0 is not useful in this case, since sum0 is not a standard sql function.
> Add a version of AggregateReduceFunctionsRule that does not reduce SUm -> SUM0
> ------------------------------------------------------------------------------
>
> Key: CALCITE-2820
> URL: https://issues.apache.org/jira/browse/CALCITE-2820
> Project: Calcite
> Issue Type: Task
> Components: core
> Reporter: Siddharth Teotia
> Priority: Minor
> Labels: pull-request-available
> Time Spent: 1.5h
> Remaining Estimate: 0h
>
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