Jonathan Keane created ARROW-13262:
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Summary: [R] Support namespacing of function maps?
Key: ARROW-13262
URL: https://issues.apache.org/jira/browse/ARROW-13262
Project: Apache Arrow
Issue Type: Improvement
Components: R
Reporter: Jonathan Keane
With our NSE function map setup, we translate various functions into Arrow
equivalents:
{code}
library(arrow)
library(dplyr)
arrow_table <- Table$create(tibble::tibble(
v = c("A", "B", "C"),
w = c("a", "b", "c"),
x = c("d", NA_character_, "f"),
y = c(NA_character_, "h", "i"),
z = c(1.1, 2.2, NA)
))
arrow_table %>%
transmute(str_c(x, y, sep = " ")) %>%
collect()
#> # A tibble: 3 x 1
#> `str_c(x, y, sep = " ")`
#> <chr>
#> 1 <NA>
#> 2 <NA>
#> 3 f i
{code}
Which is great, however if the code that is being used uses the `sringr::`
namespace prefix this errors:
{code}
arrow_table %>%
transmute(stringr::str_c(x, y, sep = " ")) %>%
collect()
#> Warning: Expression stringr::str_c(x, y, sep = " ") not supported in Arrow;
#> pulling data into R
#> Error: Problem with `mutate()` input `..1`.
#> ℹ `..1 = ..1`.
#> x object 'x' not found
{code}
Should we support this (basically *also* translate {{stringr::str_c()}} to what
we have for {{str_c()}})? Or warn/error more clearly what happened if we don't
support any namespace prefixed functions? Something else?
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