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https://issues.apache.org/jira/browse/ARROW-5005?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17662027#comment-17662027
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Rok Mihevc commented on ARROW-5005:
-----------------------------------
This issue has been migrated to [issue
#21504|https://github.com/apache/arrow/issues/21504] on GitHub. Please see the
[migration documentation|https://github.com/apache/arrow/issues/14542] for
further details.
> [C++] Implement support for using selection vectors in scalar aggregate
> function kernels
> ----------------------------------------------------------------------------------------
>
> Key: ARROW-5005
> URL: https://issues.apache.org/jira/browse/ARROW-5005
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Francois Saint-Jacques
> Priority: Major
>
> The aggregate kernels don't support mask (the result of a filter). Add the
> the following method to `AggregateFunction`.
> {code:c++}
> virtual Status ConsumeWithFilter(const Array& input, const Array& mask, void*
> state) const = 0;
> {code}
> The goal is to add support for AST similar to:
> {code:sql}
> SELECT AGG(x) FROM table WHERE pred;
> {code}
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