Github user visaxin commented on a diff in the pull request: https://github.com/apache/spark/pull/18477#discussion_r146457833 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/regexpExpressions.scala --- @@ -268,7 +268,7 @@ case class StringSplit(str: Expression, pattern: Expression) usage = "_FUNC_(str, regexp, rep) - Replaces all substrings of `str` that match `regexp` with `rep`.", extended = """ Examples: - > SELECT _FUNC_('100-200', '(\d+)', 'num'); + > SELECT _FUNC_('100-200', '(\\d+)', 'num'); --- End diff -- I add spark-sql and scala to make it clear.
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