alearrigo opened a new issue, #36660:
URL: https://github.com/apache/arrow/issues/36660
### Describe the bug, including details regarding any error messages,
version, and platform.
As described in the object, that's what happen when I try to use count() or
tally() on a parquet file with open_dataset():
Reprex:
```
library(dplyr)
library(arrow)
write_parquet(mtcars, "~/Desktop/mtcars.parquet")
open_dataset("~/Desktop/mtcars.parquet") %>%
tally(mpg)
```
That's the error:
````
> open_dataset("~/Desktop/mtcars.parquet") %>%
+ count(mpg)
Error in `dplyr::tally()`:
! `name` must be a valid name, not `NULL`.
Run `rlang::last_trace()` to see where the error occurred.
> rlang::last_trace()
<error/mpg>
Error in `dplyr::tally()`:
! `name` must be a valid name, not `NULL`.
---
Backtrace:
▆
1. ├─open_dataset("~/Desktop/mtcars.parquet") %>% count(mpg)
2. ├─dplyr::count(., mpg)
3. └─arrow:::count.Dataset(., mpg)
4. ├─dplyr::tally(...)
5. └─arrow:::tally.arrow_dplyr_query(name = name)
Run rlang::last_trace(drop = FALSE) to see 3 hidden frames.
> rlang::last_trace(drop = FALSE)
<error/mpg>
Error in `dplyr::tally()`:
! `name` must be a valid name, not `NULL`.
---
Backtrace:
▆
1. ├─open_dataset("~/Desktop/mtcars.parquet") %>% count(mpg)
2. ├─dplyr::count(., mpg)
3. └─arrow:::count.Dataset(., mpg)
4. ├─dplyr::tally(...)
5. └─arrow:::tally.arrow_dplyr_query(name = name)
6. └─dplyr:::check_name(name, dplyr::group_vars(x))
7. └─dplyr:::stop_input_type(...)
8. └─rlang::abort(message, ..., call = call, arg = arg)
````
Session info:
```
─ Session info
───────────────────────────────────────────────────────────────────────────────────────────────────────────
setting value
version R version 4.2.2 (2022-10-31)
os macOS Ventura 13.4.1
system aarch64, darwin20
ui RStudio
language (EN)
collate en_US.UTF-8
ctype en_US.UTF-8
tz Europe/Rome
date 2023-07-13
rstudio 2023.06.0+421 Mountain Hydrangea (desktop)
pandoc NA
─ Packages
───────────────────────────────────────────────────────────────────────────────────────────────────────────────
package * version date (UTC) lib source
arrow * 10.0.1 2022-12-06 [1] CRAN (R 4.2.0)
assertthat 0.2.1 2019-03-21 [1] CRAN (R 4.2.0)
bit 4.0.5 2022-11-15 [1] CRAN (R 4.2.0)
bit64 4.0.5 2020-08-30 [1] CRAN (R 4.2.0)
cli 3.6.1 2023-03-23 [1] CRAN (R 4.2.0)
crayon 1.5.2 2022-09-29 [1] CRAN (R 4.2.0)
dplyr * 1.1.2 2023-04-20 [1] CRAN (R 4.2.0)
fansi 1.0.4 2023-01-22 [1] CRAN (R 4.2.0)
generics 0.1.3 2022-07-05 [1] CRAN (R 4.2.0)
glue 1.6.2 2022-02-24 [1] CRAN (R 4.2.0)
lifecycle 1.0.3 2022-10-07 [1] CRAN (R 4.2.0)
magrittr 2.0.3 2022-03-30 [1] CRAN (R 4.2.0)
pillar 1.9.0 2023-03-22 [1] CRAN (R 4.2.0)
pkgconfig 2.0.3 2019-09-22 [1] CRAN (R 4.2.0)
purrr 1.0.1 2023-01-10 [1] CRAN (R 4.2.0)
R6 2.5.1 2021-08-19 [1] CRAN (R 4.2.0)
rlang 1.1.1 2023-04-28 [1] CRAN (R 4.2.0)
rstudioapi 0.14 2022-08-22 [1] CRAN (R 4.2.0)
sessioninfo 1.2.2 2021-12-06 [1] CRAN (R 4.2.0)
tibble 3.2.1 2023-03-20 [1] CRAN (R 4.2.0)
tidyselect 1.2.0 2022-10-10 [1] CRAN (R 4.2.0)
utf8 1.2.3 2023-01-31 [1] CRAN (R 4.2.0)
vctrs 0.6.3 2023-06-14 [1] CRAN (R 4.2.0)
[1] /Library/Frameworks/R.framework/Versions/4.2-arm64/Resources/library
```
### Component(s)
R
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