paleolimbot opened a new pull request #11690:
URL: https://github.com/apache/arrow/pull/11690
This PR implements a binding for the `make_struct` compute function. This
function was already being called in the translation for `case_when()` but
didn't have a binding of its own. Because you can do this in dplyr too (create
a nested data frame), I mapped `tibble()` and `data.frame()` since it can be
tested using `compare_dplyr_binding()`. `StructArray$create()` is a nested call
and is probably not that useful of a translation for dplyr users (I'd never
think to use it).
Basically, you can now do this:
``` r
library(arrow, warn.conflicts = FALSE)
library(dplyr, warn.conflicts = FALSE)
df <- RecordBatch$create(a = 1, b = "two")
df %>%
mutate(df_col = tibble(a, b)) %>%
collect()
#> # A tibble: 1 × 3
#> a b df_col$a $b
#> <dbl> <chr> <dbl> <chr>
#> 1 1 two 1 two
```
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