Github user rxin commented on a diff in the pull request: https://github.com/apache/spark/pull/6724#discussion_r32092684 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/stringOperations.scala --- @@ -294,3 +294,35 @@ object Substring { apply(str, pos, Literal(Integer.MAX_VALUE)) } } + +/** + * A function that return the length of the given string expression. + */ +case class StringLength(child: Expression) extends UnaryExpression with ExpectsInputTypes { + + override def foldable: Boolean = child.foldable + + override def nullable: Boolean = child.nullable + + override def dataType: DataType = IntegerType + + override def expectedChildTypes: Seq[DataType] = Seq(StringType) + + override def eval(input: Row): Any = { + val string = child.eval(input) + --- End diff -- remove this blank line
--- 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