Github user xuanyuanking commented on a diff in the pull request:
https://github.com/apache/spark/pull/22017#discussion_r208257687
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/complexTypeExtractors.scala
---
@@ -267,22 +267,23 @@ case class GetArrayItem(child: Expression, ordinal:
Expression)
}
}
-/**
- * Common base class for [[GetMapValue]] and [[ElementAt]].
- */
-
-abstract class GetMapValueUtil extends BinaryExpression with
ImplicitCastInputTypes {
+object GetMapValueUtil
+{
--- End diff --
nit: brace should in previous line.
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