Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/19576#discussion_r147311315
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Cast.scala
---
@@ -390,7 +390,7 @@ case class Cast(child: Expression, dataType: DataType,
timeZoneId: Option[String
*
--- End diff --
Nit: remove this useless line.
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