sven-weber-db commented on code in PR #55611:
URL: https://github.com/apache/spark/pull/55611#discussion_r3195522136
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sql/core/src/main/scala/org/apache/spark/sql/classic/Dataset.scala:
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@@ -1461,14 +1463,36 @@ class Dataset[T] private[sql](
isBarrier: Boolean = false,
profile: ResourceProfile = null): DataFrame = {
val func = funcCol.expr
- Dataset.ofRows(
- sparkSession,
+ val output = toAttributes(func.dataType.asInstanceOf[StructType])
Review Comment:
As discussed offline: Adding support for `mapInArrow` is currently blocked
on the introduction of the gRPC protocol and its implementation. I will raise
the PR for the first part of this change (changes in `udf`). When gRPC has
landed till the second part is required we can address this in one PR.
Otherwise, there will be a follow-up.
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