Github user dongjoon-hyun commented on a diff in the pull request:
https://github.com/apache/spark/pull/23178#discussion_r238007219
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/expressions/UserDefinedFunction.scala
---
@@ -38,114 +38,106 @@ import org.apache.spark.sql.types.DataType
* @since 1.3.0
*/
@Stable
--- End diff --
I'm +1 for this PR, but I'm just wondering if this `@Stable` tag with
`@since 1.3.0` tag is valid or not here.
Previous case class was stable until 2.4.x and new trait will be stable
since 3.0. But, the stability is broken at 3.0.0 once. Did I understand
correctly?
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