[ARROW-17620] [R] as_arrow_array() ignores type argument for StructArrays

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 10.0.0
• Component/s: R
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/32864
• Assignee: François Michonneau
• Reporter: François Michonneau
• Created: 05/Sep/22 16:22
• Updated: 11/Jan/23 11:51
• Resolved: 12/Sep/22 13:30

Description

While `Arrow$create()` respects the types provided by the `type` argument, they are ignored when using `as_arrow_array()`. Compare the output below:

 

library(arrow, warn.conflicts = FALSE)

dataset <- data.frame(
a = 1,
b = 2,
c = 3
)

types <- struct(a = int16(), b = int32(), c = int64())

as_arrow_array(
dataset, 
type = types
)$type
#> StructType
#> struct<a: double, b: double, c: double>

Array$create(
dataset, 
type = types
)$type
#> StructType
#> struct<a: int16, b: int32, c: int64>

I have identified the bug and will submit a PR.

Issue Links

• links to: GitHub Pull Request #14047