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Posted to jira@arrow.apache.org by "Kirill Müller (Jira)" <ji...@apache.org> on 2022/09/29 03:25:00 UTC
[jira] [Updated] (ARROW-17885) [R] Return BLOB data as list of raw instead of a list of integers
[ https://issues.apache.org/jira/browse/ARROW-17885?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Kirill Müller updated ARROW-17885:
----------------------------------
Summary: [R] Return BLOB data as list of raw instead of a list of integers (was: Return BLOB data as list of raw instead of a list of integers)
> [R] 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
> Priority: Minor
>
> 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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