Github user dongjoon-hyun commented on a diff in the pull request:
https://github.com/apache/spark/pull/22391#discussion_r216786657
--- Diff:
mllib/src/test/scala/org/apache/spark/ml/feature/VectorAssemblerSuite.scala ---
@@ -147,4 +147,12 @@ class VectorAssemblerSuite
.filter(vectorUDF($"features") > 1)
.count() == 1)
}
+
+ test("SPARK-25371: VectorAssembler with empty inputCols") {
+ val inputDF = Seq(
+ (1, Vectors.dense(1.0, 2.0)), (2, Vectors.sparse(2, Array(1),
Array(3.0)))).toDF("i", "v")
--- End diff --
@mgaido91 . This is the only difference from the original one?
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