mgaido91 commented on a change in pull request #21599: [SPARK-26218][SQL]
Overflow on arithmetic operations returns incorrect result
URL: https://github.com/apache/spark/pull/21599#discussion_r309239670
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File path: sql/catalyst/src/main/scala/org/apache/spark/sql/types/Decimal.scala
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@@ -228,6 +229,12 @@ final class Decimal extends Ordered[Decimal] with
Serializable {
if (decimalVal.eq(null)) {
longVal / POW_10(_scale)
} else {
+ if (SQLConf.get.arithmeticOperationOverflowCheck) {
Review comment:
yes, exactly. We can discuss on this when we do the PR for addressing the
sum buffer datatype.
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