cloud-fan commented on a change in pull request #30440:
URL: https://github.com/apache/spark/pull/30440#discussion_r529248836
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Cast.scala
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@@ -98,6 +98,19 @@ object Cast {
case _ => false
}
+ def typeCheckFailureMessage(from: DataType, to: DataType): String = (from,
to) match {
+ case (_: NumericType, TimestampType) =>
+ // scalastyle:off line.size.limit
+ s"""
+ | cannot cast ${from.catalogString} to ${to.catalogString},
+ | you can enable the casting by setting
${SQLConf.LEGACY_ALLOW_CAST_NUMERIC_TO_TIMESTAMP.key}
Review comment:
shall we remove `LEGACY_ALLOW_CAST_NUMERIC_TO_TIMESTAMP`? It's true by
default and I don't see why it's needed since we have ansi mode.
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