Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/15513#discussion_r85221940
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/predicates.scala
---
@@ -251,7 +259,12 @@ case class InSet(child: Expression, hset: Set[Any])
extends UnaryExpression with
}
@ExpressionDescription(
- usage = "a _FUNC_ b - Logical AND.")
+ usage = "expr1 _FUNC_ expr2 - Logical AND.",
+ extended = """
+ Arguments:
+ expr1 - an expression of any type.
+ expr2 - an expression of any type.
--- End diff --
Are you sure it can support any type?
For logical operations (AND, OR or others), I think the only acceptable
types are boolean
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