Github user maropu commented on a diff in the pull request:
https://github.com/apache/spark/pull/22227#discussion_r212782784
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/regexpExpressions.scala
---
@@ -232,30 +232,41 @@ case class RLike(left: Expression, right: Expression)
extends StringRegexExpress
* Splits str around pat (pattern is a regular expression).
*/
@ExpressionDescription(
- usage = "_FUNC_(str, regex) - Splits `str` around occurrences that match
`regex`.",
+ usage = "_FUNC_(str, regex, limit) - Splits `str` around occurrences
that match `regex`." +
--- End diff --
Can you refine the description and the format along with the others, e.g.,
`RLike`
https://github.com/apache/spark/blob/ceb3f41238c8731606164cea5c45a0b87bb5d6f2/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/regexpExpressions.scala#L78
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