Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/15513#discussion_r85625801
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/arithmetic.scala
---
@@ -531,7 +615,15 @@ case class Least(children: Seq[Expression]) extends
Expression {
* It takes at least 2 parameters, and returns null iff all parameters are
null.
*/
@ExpressionDescription(
- usage = "_FUNC_(n1, ...) - Returns the greatest value of all parameters,
skipping null values.")
+ usage = "_FUNC_(expr, ...) - Returns the greatest value of all
parameters, skipping null values.",
+ extended = """
+ Arguments:
+ expr - an expression of any type.
+
--- End diff --
```sql
spark-sql> SELECT greatest(array(1), array(1)), least(struct(1), struct(1));
[1] {"col1":1}
```
---
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
