MaxGekk commented on a change in pull request #34976:
URL: https://github.com/apache/spark/pull/34976#discussion_r773383599
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Cast.scala
##########
@@ -192,31 +192,33 @@ object Cast {
* In practice, the behavior is mostly the same as PostgreSQL. It disallows
certain unreasonable
* type conversions such as converting `string` to `int` or `double` to
`boolean`.
*/
- def canANSIStoreAssign(from: DataType, to: DataType): Boolean = (from, to)
match {
- case _ if from == to => true
- case (NullType, _) => true
- case (_: NumericType, _: NumericType) => true
- case (_: AtomicType, StringType) => true
- case (_: CalendarIntervalType, StringType) => true
- case (DateType, TimestampType) => true
- case (TimestampType, DateType) => true
-
- case (ArrayType(fromType, fn), ArrayType(toType, tn)) =>
- resolvableNullability(fn, tn) && canANSIStoreAssign(fromType, toType)
-
- case (MapType(fromKey, fromValue, fn), MapType(toKey, toValue, tn)) =>
- resolvableNullability(fn, tn) && canANSIStoreAssign(fromKey, toKey) &&
- canANSIStoreAssign(fromValue, toValue)
-
- case (StructType(fromFields), StructType(toFields)) =>
- fromFields.length == toFields.length &&
- fromFields.zip(toFields).forall {
- case (f1, f2) =>
- resolvableNullability(f1.nullable, f2.nullable) &&
- canANSIStoreAssign(f1.dataType, f2.dataType)
- }
+ def canANSIStoreAssign(from: DataType, to: DataType): Boolean = {
+ val dateTimeTypes = Seq(DateType, TimestampType, TimestampNTZType)
Review comment:
How about to add new class/trait `DateTimeType` (or some other name)
like `AnyTimestampType` or `AnsiIntervalType`, and check it here. Even for now,
I have found a few place where all those types are checked together.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
