Github user marmbrus commented on a diff in the pull request:
https://github.com/apache/spark/pull/12886#discussion_r62078478
--- Diff: sql/core/src/main/scala/org/apache/spark/sql/functions.scala ---
@@ -931,8 +931,8 @@ object functions {
* @group normal_funcs
* @since 1.5.0
*/
- def broadcast(df: DataFrame): DataFrame = {
- Dataset.ofRows(df.sparkSession, BroadcastHint(df.logicalPlan))
+ def broadcast[T](df: Dataset[T]): Dataset[T] = {
+ Dataset[T](df.sparkSession,
BroadcastHint(df.logicalPlan))(df.unresolvedTEncoder)
--- End diff --
Yes, this looks right. We should get rid of the others now that the
resolution logic is in the analyzer. I think they are just there to confuse
you at this point.
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