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https://issues.apache.org/jira/browse/ARROW-13618?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Neal Richardson resolved ARROW-13618.
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Resolution: Done
All linked tasks have been completed :tada:
> [R] Use Arrow engine for summarize() by default
> -------------------------------------------------
>
> Key: ARROW-13618
> URL: https://issues.apache.org/jira/browse/ARROW-13618
> Project: Apache Arrow
> Issue Type: Improvement
> Components: R
> Reporter: Ian Cook
> Assignee: Ian Cook
> Priority: Critical
> Labels: query-engine
> Fix For: 6.0.0
>
>
> ARROW-13344 enabled the dplyr verb {{summarise()}} to use the Arrow engine
> but kept this off by default, controlled by the {{arrow.debug}} option.
> Before this can be turned on by default, we should ensure that the following
> are all implemented:
> * a sufficient set of hash aggregate kernels and R aggregate function
> mappings to them, covering the vast majority of all aggregate functions that
> dplyr users call in {{summarise()}} (add any additional required ones to
> ARROW-13339)
> * support for a sufficient set of data types in aggregates
> * support for a sufficient set of data types in grouping columns
> * handling of {{NA}} and {{NaN}} values in aggregates and the {{na.rm}}
> option consistent with base R and dplyr (ARROW-13497 and possibly other
> issues)
> * handling of {{NA}} and {{NaN}} values in grouping columns consistent with
> dplyr
> * handling empty or bad input to {{summarise()}} (ARROW-13543)
> * many new tests to confirm equivalent results from a variety of
> {{group_by() %>% summarise()}} queries on data frames and on Arrow data
> * resolution of various related bugs
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