nealrichardson commented on a change in pull request #9606:
URL: https://github.com/apache/arrow/pull/9606#discussion_r589835937
##########
File path: r/tests/testthat/test-Array.R
##########
@@ -723,6 +723,17 @@ test_that("[ accepts Arrays and otherwise handles bad
input", {
)
})
+test_that("[ %in% looks up string key in dictionary", {
+ a1 <- Array$create(as.factor(c("A", "B", "C")))
+ a2 <- DictionaryArray$create(c(0L, 1L, 2L), c(4.5, 3.2, 1.1))
+ b1 <- Array$create(c(FALSE, TRUE, FALSE))
+ b2 <- Array$create(c(FALSE, FALSE, FALSE))
+ expect_equal(b1, arrow:::call_function("is_in_meta_binary", a1,
Array$create("B")))
+ expect_equal(b2, arrow:::call_function("is_in_meta_binary", a1,
Array$create("D")))
+ expect_equal(b1, arrow:::call_function("is_in_meta_binary", a2,
Array$create(3.2)))
+ expect_error(arrow:::call_function("is_in_meta_binary", a2,
Array$create("B")))
Review comment:
It should be documented along with `match_arrow()`, which as it turns
out mentions the same quirk
https://github.com/apache/arrow/blob/master/r/R/compute.R#L88
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
