Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/15677#discussion_r85997612
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/stringExpressions.scala
---
@@ -407,9 +436,15 @@ case class StringTranslate(srcExpr: Expression,
matchingExpr: Expression, replac
*/
// scalastyle:off line.size.limit
@ExpressionDescription(
- usage = """_FUNC_(str, str_array) - Returns the index (1-based) of the
given string (left) in the comma-delimited list (right).
- Returns 0, if the string wasn't found or if the given string (left)
contains a comma.""",
- extended = "> SELECT _FUNC_('ab','abc,b,ab,c,def');\n 3")
+ usage = """
+ _FUNC_(str, str_array) - Returns the index (1-based) of the given
string (left) in the comma-delimited list (right).
+ Returns 0, if the string was not found or if the given string (left)
contains a comma.
--- End diff --
Instead of using `(left)`/`(right)`, we can directly use the parm names,
just like what we did above.
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