[jira] [Created] (ARROW-17885) Return BLOB data as list of raw instead of a list of integers

["Kirill Müller (Jira)" <ji...@apache.org>]

Kirill Müller created ARROW-17885:
-------------------------------------

             Summary: Return BLOB data as list of raw instead of a list of integers
                 Key: ARROW-17885
                 URL: https://issues.apache.org/jira/browse/ARROW-17885
             Project: Apache Arrow
          Issue Type: Bug
          Components: R
    Affects Versions: 10.0.0, 9.0.1
         Environment: macOS, R 4.1.3
            Reporter: Kirill Müller


BLOBs should be mapped to lists of raw in R, not lists of integer. Tested with ec714db3995549309b987fc8112db98bb93102d0.

``` r
library(arrow)
#> Some features are not enabled in this build of Arrow. Run `arrow_info()` for more information.
#> 
#> Attaching package: 'arrow'
#> The following object is masked from 'package:utils':
#> 
#>     timestamp

data <- data.frame(
  a = 1:3,
  b = 2.5,
  c = "three",
  stringsAsFactors = FALSE
)
data$d <- blob::blob(as.raw(1:10))

tbl <- arrow::as_arrow_table(data)
rbr <- arrow::as_record_batch_reader(tbl)

waldo::compare(as.data.frame(rbr$read_next_batch()), data)
#> `old$d[[1]]` is an integer vector (1, 2, 3, 4, 5, ...)
#> `new$d[[1]]` is a raw vector (01, 02, 03, 04, 05, ...)
#> 
#> `old$d[[2]]` is an integer vector (1, 2, 3, 4, 5, ...)
#> `new$d[[2]]` is a raw vector (01, 02, 03, 04, 05, ...)
#> 
#> `old$d[[3]]` is an integer vector (1, 2, 3, 4, 5, ...)
#> `new$d[[3]]` is a raw vector (01, 02, 03, 04, 05, ...)
```

<sup>Created on 2022-09-29 with [reprex v2.0.2](https://reprex.tidyverse.org)</sup>



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