Github user tarekauel commented on a diff in the pull request:
https://github.com/apache/spark/pull/6762#discussion_r33699927
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/stringOperations.scala
---
@@ -220,6 +222,404 @@ case class EndsWith(left: Expression, right:
Expression)
}
/**
+ * A function that trim the spaces from both ends for the specified string.
+ */
+case class StringTrim(child: Expression)
+ extends UnaryExpression with String2StringExpression {
+
+ def convert(v: UTF8String): UTF8String = v.trim()
+
+ override def toString: String = s"TRIM($child)"
+ override def genCode(ctx: CodeGenContext, ev: GeneratedExpressionCode):
String = {
+ defineCodeGen(ctx, ev, c => s"($c).trim()")
+ }
+}
+
+/**
+ * A function that trim the spaces from left end for given string.
+ */
+case class StringTrimLeft(child: Expression)
+ extends UnaryExpression with String2StringExpression {
+
+ def convert(v: UTF8String): UTF8String = v.trimLeft()
+
+ override def toString: String = s"LTRIM($child)"
+ override def genCode(ctx: CodeGenContext, ev: GeneratedExpressionCode):
String = {
+ defineCodeGen(ctx, ev, c => s"($c).trimLeft()")
+ }
+}
+
+/**
+ * A function that trim the spaces from right end for given string.
+ */
+case class StringTrimRight(child: Expression)
+ extends UnaryExpression with String2StringExpression {
+
+ def convert(v: UTF8String): UTF8String = v.trimRight()
+
+ override def toString: String = s"RTRIM($child)"
+ override def genCode(ctx: CodeGenContext, ev: GeneratedExpressionCode):
String = {
+ defineCodeGen(ctx, ev, c => s"($c).trimRight()")
+ }
+}
+
+/**
+ * A function that Returns the position of the first occurrence of substr
in the given string.
--- End diff --
`returns` instead of `Returns`
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastruct...@apache.org or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org
For additional commands, e-mail: reviews-h...@spark.apache.org
