Github user yhuai commented on a diff in the pull request:
https://github.com/apache/spark/pull/12185#discussion_r59122479
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/stringExpressions.scala
---
@@ -325,6 +337,11 @@ case class StringTranslate(srcExpr: Expression,
matchingExpr: Expression, replac
* delimited list (right). Returns 0, if the string wasn't found or if the
given
* string (left) contains a comma.
*/
+@ExpressionDescription(
+ usage = """_FUNC_(str, str_array) - Returns the first occurrence of str
in str_array.
+ where str_array is a comma-delimited string. Returns null if either
argument is null.
+ Returns 0 if the first argument has any commas.""",
--- End diff --
Seems the scala doc is a better version?
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