Github user davies commented on a diff in the pull request:
https://github.com/apache/spark/pull/11684#discussion_r56204833
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/predicates.scala
---
@@ -274,22 +274,75 @@ case class And(left: Expression, right: Expression)
extends BinaryOperator with
val eval2 = right.gen(ctx)
// The result should be `false`, if any of them is `false` whenever
the other is null or not.
- s"""
- ${eval1.code}
- boolean ${ev.isNull} = false;
- boolean ${ev.value} = false;
+ if (!left.nullable && !right.nullable) {
+ ev.isNull = "false"
+ s"""
+ ${eval1.code}
+ boolean ${ev.value} = false;
- if (!${eval1.isNull} && !${eval1.value}) {
+ if (${eval1.value}) {
+ ${eval2.code}
+ if (${eval2.value}) {
--- End diff --
`${ev.value} = ${eval2.value}`
---
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