nealrichardson commented on a change in pull request #9745:
URL: https://github.com/apache/arrow/pull/9745#discussion_r597995646
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File path: r/R/expression.R
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@@ -181,6 +181,20 @@ find_array_refs <- function(x) {
unlist(out)
}
+get_field_name <- function(x, msg = NULL) {
Review comment:
This basically looks like the anonymous function inside of `map_chr` in
`get_field_names()`. Whether or not you end up deciding that you need it here,
you could factor that out as `get_field_name()` so it is usable in cases like
this. (It also works on dataset Expressions, so you'll be set for supporting
this feature on Datasets too.)
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