cloud-fan commented on code in PR #38379:
URL: https://github.com/apache/spark/pull/38379#discussion_r1003905809
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/arithmetic.scala:
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@@ -477,7 +477,10 @@ case class Add(
override protected def withNewChildrenInternal(newLeft: Expression,
newRight: Expression): Add =
copy(left = newLeft, right = newRight)
- override lazy val canonicalized: Expression = {
+ override lazy val canonicalized: Expression = dataType match {
Review Comment:
let's call `left.dataType`. `dataType` is a `def` and contains some
calculation logic.
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