dilipbiswal commented on a change in pull request #28593:
URL: https://github.com/apache/spark/pull/28593#discussion_r436517413
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Cast.scala
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@@ -266,7 +267,15 @@ abstract class CastBase extends UnaryExpression with
TimeZoneAwareExpression wit
TypeCheckResult.TypeCheckSuccess
} else {
TypeCheckResult.TypeCheckFailure(
- s"cannot cast ${child.dataType.catalogString} to
${dataType.catalogString}")
+ if (child.dataType.isInstanceOf[NumericType] &&
dataType.isInstanceOf[TimestampType]) {
+ s"cannot cast ${child.dataType.catalogString} to
${dataType.catalogString}," +
+ "you can enable the casting by setting " +
+ s"${SQLConf.LEGACY_ALLOW_CAST_NUMERIC_TO_TIMESTAMP.key} to true," +
+ "but we strongly recommand using function " +
Review comment:
recommand -> recommend ?
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