Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/22395#discussion_r217743678
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/arithmetic.scala
---
@@ -314,6 +314,32 @@ case class Divide(left: Expression, right: Expression)
extends DivModLike {
override def evalOperation(left: Any, right: Any): Any = div(left, right)
}
+@ExpressionDescription(
+ usage = "expr1 _FUNC_ expr2 - Returns `expr1`/`expr2`. It performs
integral division.",
--- End diff --
Let's mention that it always return long. Maybe we can take a look at how
Hive document it.
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