beliefer commented on a change in pull request #32311:
URL: https://github.com/apache/spark/pull/32311#discussion_r619946808
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/collectionOperations.scala
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@@ -2484,8 +2484,8 @@ case class Flatten(child: Expression) extends
UnaryExpression with NullIntoleran
The start and stop expressions must resolve to the same type.
If start and stop expressions resolve to the 'date' or 'timestamp' type
- then the step expression must resolve to the 'interval' type, otherwise
to the same type
- as the start and stop expressions.
+ then the step expression must resolve to the 'interval' or 'year-month'
or 'day-time' type,
Review comment:
OK
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