yaooqinn commented on a change in pull request #26410:
[SPARK-29387][SQL][FOLLOWUP] Fix issues of the multiply and divide for intervals
URL: https://github.com/apache/spark/pull/26410#discussion_r342991903
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/intervalExpressions.scala
##########
@@ -137,7 +137,11 @@ abstract class IntervalNumOperation(
val iu = IntervalUtils.getClass.getName.stripSuffix("$")
s"""
try {
- ${ev.value} = $iu.$operationName($interval, $num);
+ if ($num != 0) {
Review comment:
Actually, I tested this. I guess the literals already go through this, but
they are correct to produce nulls with zero. I have no idea, adding check will
do no harm
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