Github user dongjoon-hyun commented on a diff in the pull request:
https://github.com/apache/spark/pull/14095#discussion_r70028852
--- Diff: sql/core/src/main/scala/org/apache/spark/sql/Dataset.scala ---
@@ -228,6 +228,15 @@ class Dataset[T] private[sql](
}
}
+ private def aggregatableColumns: Seq[Expression] = {
+ schema.fields
+ .filter(f => f.dataType.isInstanceOf[NumericType] ||
f.dataType.isInstanceOf[StringType])
+ .map { n =>
+ queryExecution.analyzed.resolveQuoted(n.name,
sparkSession.sessionState.analyzer.resolver)
+ .get
--- End diff --
Ur, this is an direct extension of line 225 of existing `numericColumns`.
https://github.com/apache/spark/pull/14095/files#diff-7a46f10c3cedbf013cf255564d9483cdR225
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