Github user felixcheung commented on a diff in the pull request:
https://github.com/apache/spark/pull/15421#discussion_r82733951
--- Diff: R/pkg/inst/tests/testthat/test_sparkSQL.R ---
@@ -379,6 +379,17 @@ test_that("create DataFrame with different data
types", {
expect_equal(collect(df), data.frame(l, stringsAsFactors = FALSE))
})
+test_that("SPARK-17811: can create DataFrame containing NA as date and
time", {
+ df <- data.frame(
+ id = 1:2,
+ time = c(as.POSIXlt("2016-01-10"), NA),
+ date = c(as.Date("2016-10-01"), NA))
+
+ DF <- collect(createDataFrame(df))
+ expect_true(is.na(DF$date[2]))
--- End diff --
We should check the valid dates are correctly serialized too?
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