gatorsmile commented on a change in pull request #24742: [SPARK-27881][SQL]
Support CAST (... FORMAT <pattern>) expression
URL: https://github.com/apache/spark/pull/24742#discussion_r290509641
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Cast.scala
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@@ -204,12 +206,17 @@ object Cast {
> SELECT _FUNC_('10' as int);
10
""")
-case class Cast(child: Expression, dataType: DataType, timeZoneId:
Option[String] = None)
+case class Cast(
+ child: Expression,
+ dataType: DataType,
+ timeZoneId: Option[String] = None,
+ format: Option[String] = None)
Review comment:
I think we should hold it until the other mainstream database support it.
Basically, no system supports this new format yet.
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