cloud-fan commented on a change in pull request #33172:
URL: https://github.com/apache/spark/pull/33172#discussion_r662102426
##########
File path:
sql/core/src/test/scala/org/apache/spark/sql/execution/ShufflePartitionsUtilSuite.scala
##########
@@ -459,9 +466,36 @@ class ShufflePartitionsUtilSuite extends SparkFunSuite {
Seq(
Some(specs1),
Some(specs2)),
- targetSize, 1)
+ targetSize)
assert(coalesced == Seq(expected1, expected2))
}
+
+ {
+ // No actual coalescing happened, return empty result.
Review comment:
not related to this PR. Just found we missed testing this case when
reading the code.
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