MaxGekk commented on code in PR #45501:
URL: https://github.com/apache/spark/pull/45501#discussion_r1526215089
##########
common/unsafe/src/test/scala/org/apache/spark/unsafe/types/CollationFactorySuite.scala:
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@@ -138,4 +139,17 @@ class CollationFactorySuite extends AnyFunSuite with
Matchers { // scalastyle:ig
assert(result == testCase.expectedResult)
})
}
+
+ test("test concurrently generating collation keys") {
+ // generating ICU sort keys is not thread-safe by default so this should
fail
+ // if we don't handle the concurrency properly on Collator level
Review Comment:
Just in case, could you point out where do we handle this?
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