maropu commented on a change in pull request #25615:
[SPARK-28495][SQL][FOLLOW-UP] Disallow conversions between timestamp and long
in ASNI mode
URL: https://github.com/apache/spark/pull/25615#discussion_r318906581
##########
File path:
sql/catalyst/src/test/scala/org/apache/spark/sql/types/DataTypeWriteCompatibilitySuite.scala
##########
@@ -133,6 +133,18 @@ class ANSIDataTypeWriteCompatibilitySuite extends
DataTypeWriteCompatibilityBase
assert(err.contains("Cannot safely cast"))
}
}
+
+ test("Conversions between timestamp and long are not allowed") {
+ assertSingleError(LongType, TimestampType, "longToTimestamp",
+ "Should not allow long to timestamp") { err =>
+ assert(err.contains("Cannot safely cast 'longToTimestamp': LongType to
TimestampType"))
+ }
+
+ assertSingleError(TimestampType, LongType, "timestampToLong",
+ "Should not allow timestamp to long") { err =>
+ assert(err.contains("Cannot safely cast 'timestampToLong': TimestampType
to LongType"))
+ }
+ }
Review comment:
yea, ok.
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