thisisnic commented on a change in pull request #10196:
URL: https://github.com/apache/arrow/pull/10196#discussion_r625950706
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File path: r/R/expression.R
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@@ -56,13 +56,9 @@ build_array_expression <- function(FUN,
args = list(...),
options = empty_named_list()) {
if (FUN == "-" && length(args) == 1L) {
- # Unary -, i.e. just make it negative, and somehow this works
if (inherits(args[[1]], c("ArrowObject", "array_expression"))) {
- # Make it be 0 - arg
- # TODO(ARROW-11950): do this in C++ compute
- args <- list(0L, args[[1]])
+ return(build_array_expression("negate", args[[1]]))
Review comment:
Perhaps for the sake of consistency, using `negate_checked` makes sense,
even if not strictly necessary?
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