[jira] [Created] (ARROW-13860) [R] arrow 5.0.0 write_parquet throws error writing grouped data.frame

["Hideaki Hayashi (Jira)" <ji...@apache.org>]

Hideaki Hayashi created ARROW-13860:
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             Summary: [R] arrow 5.0.0 write_parquet throws error writing grouped data.frame
                 Key: ARROW-13860
                 URL: https://issues.apache.org/jira/browse/ARROW-13860
             Project: Apache Arrow
          Issue Type: Bug
         Environment: maxOS 11.1 Big Sur
            Reporter: Hideaki Hayashi


arrow 5.0.0 write_parquet throws error writing grouped data.frame.

Here is how to reproduce it.

{{library(dplyr)}}
{{ arrow::write_parquet(mtcars %>% group_by(am),"/tmp/mtcars_test.parquet")}}
{{# Error: x must be an object of class 'data.frame', 'RecordBatch', or 'Table', not 'arrow_dplyr_query’.}}

 

With arrow 4.0.1, this used to work fine.

{{library(dplyr)}}
{{arrow::write_parquet(mtcars %>% group_by(am),"/tmp/mtcars_test.parquet")}}
{{x <- arrow::read_parquet("/tmp/mtcars_test.parquet")}}
{{x}}
{{# A tibble: 32 x 11}}
{{# Groups:   am [2]}}
{{#     mpg   cyl  disp    hp  drat    wt  qsec    vs    am  gear  carb}}
{{# * <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl>}}
{{# 1  21       6  160    110  3.9   2.62  16.5     0     1     4     4}}
{{# 2  21       6  160    110  3.9   2.88  17.0     0     1     4     4}}
{{# 3  22.8     4  108     93  3.85  2.32  18.6     1     1     4     1}}
{{# 4  21.4     6  258    110  3.08  3.22  19.4     1     0     3     1}}
{{# 5  18.7     8  360    175  3.15  3.44  17.0     0     0     3     2}}
{{# 6  18.1     6  225    105  2.76  3.46  20.2     1     0     3     1}}
{{# 7  14.3     8  360    245  3.21  3.57  15.8     0     0     3     4}}
{{# …}}

 

 



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