[jira] [Created] (ARROW-17737) [R] Continue to retain grouping metadata even if ungroup arrow dplyr query

["SHIMA Tatsuya (Jira)" <ji...@apache.org>]

SHIMA Tatsuya created ARROW-17737:
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             Summary: [R] Continue to retain grouping metadata even if ungroup arrow dplyr query
                 Key: ARROW-17737
                 URL: https://issues.apache.org/jira/browse/ARROW-17737
             Project: Apache Arrow
          Issue Type: Improvement
          Components: R
    Affects Versions: 9.0.0
            Reporter: SHIMA Tatsuya


Perhaps {{metadata$r$attributes$.group_vars}} needs to be removed when it becomes arrow dplyr query.

{code:r}
mtcars |> dplyr::group_by(cyl) |> arrow::arrow_table() |> dplyr::ungroup() |> as.data.frame() |> dplyr::group_vars()
#> character(0)
mtcars |> dplyr::group_by(cyl) |> arrow:::as_adq() |> dplyr::ungroup() |> as.data.frame() |> dplyr::group_vars()
#> [1] "cyl"
{code}



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