gengliangwang commented on a change in pull request #33115:
URL: https://github.com/apache/spark/pull/33115#discussion_r659841530
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/types/AbstractDataType.scala
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@@ -217,3 +217,14 @@ private[sql] abstract class FractionalType extends
NumericType {
private[sql] val fractional: Fractional[InternalType]
private[sql] val asIntegral: Integral[InternalType]
}
+
+private[sql] object AnyTimestampType extends AbstractDataType with
Serializable {
Review comment:
I do have introduced `TypeCollection.AllTimestampTypes` in a previous PR.
However, in this PR I find that having `AnyTimestampType` can simplify the
code changes in `TypeCoercion.scala`.
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