Github user jkbradley commented on a diff in the pull request:
https://github.com/apache/spark/pull/12066#discussion_r63440571
--- Diff:
mllib/src/main/scala/org/apache/spark/ml/classification/Classifier.scala ---
@@ -179,7 +230,7 @@ abstract class ClassificationModel[FeaturesType, M <:
ClassificationModel[Featur
}
predictUDF(col(getFeaturesCol))
}
- outputData = outputData.withColumn(getPredictionCol, predUDF)
+ outputData = outputData.withColumn(getPredictionCol, predUDF,
predictionMetadata)
--- End diff --
The problem is that the name may be different. transform can be given a
new output column name, so we may need to update the name
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