Github user viirya commented on a diff in the pull request:
https://github.com/apache/spark/pull/19662#discussion_r149568133
--- Diff:
mllib/src/test/scala/org/apache/spark/ml/feature/VectorAssemblerSuite.scala ---
@@ -126,4 +126,25 @@ class VectorAssemblerSuite
.setOutputCol("myOutputCol")
testDefaultReadWrite(t)
}
+
+ test("VectorAssembler's UDF should not apply on filtered data") {
--- End diff --
Ok.
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