gengliangwang commented on a change in pull request #32001:
URL: https://github.com/apache/spark/pull/32001#discussion_r603834366
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Cast.scala
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@@ -72,6 +72,11 @@ object Cast {
case (StringType, CalendarIntervalType) => true
+ case (LongType, DayTimeIntervalType) => true
+ case (DayTimeIntervalType, LongType) => true
+ case (IntegerType, YearMonthIntervalType) => true
+ case (YearMonthIntervalType, IntegerType) => true
Review comment:
I just lookup the ANSI standard and it forbids converting intervals as
Approximate Numeric types. How about let's support integral types first?
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