hvanhovell commented on code in PR #38956:
URL: https://github.com/apache/spark/pull/38956#discussion_r1047952066
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/conditionalExpressions.scala:
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@@ -161,6 +161,13 @@ case class CaseWhen(
elseValue: Option[Expression] = None)
extends ComplexTypeMergingExpression with ConditionalExpression {
+ def this(branches: Seq[Expression]) = this(
Review Comment:
Can we use the `CaseWhen.createFromParser`? You will need to register an
`ExpressionBuilder` for this. The upside of this is that it is less messy in
the constructor, and that there is ample testing for this from the parser.
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