Github user kiszk commented on a diff in the pull request:
https://github.com/apache/spark/pull/19729#discussion_r150542028
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/arithmetic.scala
---
@@ -604,6 +604,8 @@ case class Least(children: Seq[Expression]) extends
Expression {
val evalChildren = children.map(_.genCode(ctx))
val first = evalChildren(0)
--- End diff --
Thank you for your explanation. Got it.
Your idea is to set `true` into `ev.isNull` rather than using
`ctx.defaultValue` as an initial value for `ev.value`.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
