Github user javadba commented on a diff in the pull request:
https://github.com/apache/spark/pull/1586#discussion_r15726383
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/stringOperations.scala
---
@@ -208,6 +211,96 @@ case class EndsWith(left: Expression, right:
Expression)
def compare(l: String, r: String) = l.endsWith(r)
}
+
+/**
+ * A function that returns the number of bytes in an expression
+ */
+case class Length(child: Expression) extends UnaryExpression {
+
+ type EvaluatedType = Any
+
+ override def dataType = IntegerType
+
+ override def foldable = child.foldable
+
+ override def nullable = child.nullable
+
+ override def toString = s"Length($child)"
+
+ override def eval(input: Row): EvaluatedType = {
+ val inputVal = child.eval(input)
+ if (inputVal == null) {
+ null
+ } else if (!inputVal.isInstanceOf[String]) {
+ inputVal.toString.length
+ } else {
+ OctetLenUtils.len(inputVal.asInstanceOf[String])
--- End diff --
How can use just String.codePointCount? you need to provide the start/end
points and we do not know them w/o doing this kind of count
---
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.
---
