Github user WeichenXu123 commented on a diff in the pull request:
https://github.com/apache/spark/pull/21274#discussion_r186986006
--- Diff:
mllib/src/main/scala/org/apache/spark/ml/clustering/PowerIterationClustering.scala
---
@@ -232,7 +232,7 @@ class PowerIterationClustering private[clustering] (
case _: LongType =>
uncastPredictions
case otherType =>
--- End diff --
Why not directly use
`case intType: IntType: ` so that make a stronger restriction ?
Or do we need to support other types besides int/long ?
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