hvanhovell commented on a change in pull request #22054: [SPARK-24703][SQL]:
To add support to multiply CalendarInterval with Integral Type.
URL: https://github.com/apache/spark/pull/22054#discussion_r302128416
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/TypeCoercion.scala
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@@ -837,6 +837,10 @@ object TypeCoercion {
Cast(TimeAdd(l, r), l.dataType)
case Subtract(l, r @ CalendarIntervalType()) if
acceptedTypes.contains(l.dataType) =>
Cast(TimeSub(l, r), l.dataType)
+ case Multiply(l @ CalendarIntervalType(), r @ IntegerType()) =>
Review comment:
I think you need to make the type checking less strict to make implicit
casting work. Can you drop the check for `IntegerType`?
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