Ian Cook created ARROW-13618:
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Summary: [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
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)
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