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[R] Argument names ignored in schema supplied as in_type argument to register_scalar_function() #37761
Description
Describe the bug, including details regarding any error messages, version, and platform.
For in_type, I would have expected the argument name should match the data. But this doesn't seem to be the case
library(arrow)
library(dplyr)
# Make data set
write.csv(sleep, "sleep.csv", row.names = F)
# Register function
register_scalar_function(
name = "f",
fun = function(context, x) as.integer(x),
in_type = schema(blah = int64()), # NOTE: Schema name
out_type = int32(),
auto_convert = TRUE
)
open_dataset("sleep.csv", format = "csv") |>
mutate(f(group)) |>
head() |>
collect()
Component(s)
R
Activity
[-]Argument names ignored in schema[/-][+][R] Argument names ignored in schema[/+][-][R] Argument names ignored in schema[/-][+][R] Argument names ignored in schema supplied as `in_type` argument to `register_scalar_function()`[/+]nealrichardson commentedon Sep 18, 2023
We could add a check that
identical(formalArgs(fun)[-1], names(in_type))(ifinherits(in_type, "Schema"), which it may not be if there's only one arg).GH-37761: [R] Argument names ignored in schema supplied as in_type ar…
thisisnic commentedon Sep 18, 2026
Issue resolved by pull request 51324
#51324