gengliangwang commented on a change in pull request #34448:
URL: https://github.com/apache/spark/pull/34448#discussion_r746672150
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Cast.scala
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@@ -610,7 +610,7 @@ abstract class CastBase extends UnaryExpression with
TimeZoneAwareExpression wit
case BooleanType =>
buildCast[Boolean](_, b => if (b) 1L else 0L)
case DateType =>
- buildCast[Int](_, d => null)
+ buildCast[Int](_, d => timestampToLong(daysToMicros(d, zoneId)))
Review comment:
This will overflow in year 2039
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