Github user liancheng commented on a diff in the pull request:
https://github.com/apache/spark/pull/936#discussion_r13270287
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/stringOperations.scala
---
@@ -115,3 +131,21 @@ case class RLike(left: Expression, right: Expression)
override def escape(v: String): String = v
override def matches(regex: Pattern, str: String): Boolean =
regex.matcher(str).find(0)
}
+
+/**
+ * System function upper()
+ * */
+case class Upper(child: Expression)
+ extends UnaryExpression with CaseConversionExpression {
+
+ override def convert(v: String): String = {v.toUpperCase()}
--- End diff --
Please either remove the braces or start the function body in a new line.
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