zhengruifeng commented on a change in pull request #31472:
URL: https://github.com/apache/spark/pull/31472#discussion_r570108063
##########
File path:
mllib/src/test/scala/org/apache/spark/ml/classification/OneVsRestSuite.scala
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@@ -223,6 +223,13 @@ class OneVsRestSuite extends MLTest with
DefaultReadWriteTest {
assert(oldCols === newCols)
}
+ test("SPARK-SPARK-34356: OneVsRestModel.transform should avoid potential
column conflict") {
Review comment:
this test will fail in master and (maybe) all version of OVR.
but I think fix it in master maybe enough.
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