Github user felixcheung commented on a diff in the pull request:
https://github.com/apache/spark/pull/17136#discussion_r104322462
--- Diff: R/pkg/inst/tests/testthat/test_sparkSQL.R ---
@@ -246,8 +246,8 @@ test_that("read/write csv as DataFrame", {
mockLinesCsv <- c("year,make,model,comment,blank",
"\"2012\",\"Tesla\",\"S\",\"No comment\",",
"1997,Ford,E350,\"Go get one now they are going
fast\",",
- "2015,Chevy,Volt",
- "NA,Dummy,Placeholder")
+ "2015,Chevy,Volt,,",
--- End diff --
I think this is a regression in behavior that could affect users. If we are
to consider parse mode flag, that flag should default to be backward compatible
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