cloud-fan commented on a change in pull request #30442:
URL: https://github.com/apache/spark/pull/30442#discussion_r528567293



##########
File path: 
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/DateExpressionsSuite.scala
##########
@@ -1286,4 +1287,47 @@ class DateExpressionsSuite extends SparkFunSuite with 
ExpressionEvalHelper {
     testIntegralFunc(Long.MaxValue)
     testIntegralFunc(Long.MinValue)
   }
+
+  test("SPARK-33498: GetTimestamp,UnixTimestamp,ToUnixTimestamp with 
parseError") {
+    Seq(true, false).foreach { ansiEnabled =>
+      Seq("LEGACY", "CORRECTED", "EXCEPTION").foreach { policy =>
+        withSQLConf(SQLConf.LEGACY_TIME_PARSER_POLICY.key -> policy,
+          SQLConf.ANSI_ENABLED.key -> ansiEnabled.toString) {
+
+          val exprSeq = Seq[Expression](
+            GetTimestamp(Literal("2020-01-27T20:06:11.847"), 
Literal("yyyy-MM-dd HH:mm:ss.SSS")),
+            GetTimestamp(Literal("Unparseable"), Literal("yyyy-MM-dd 
HH:mm:ss.SSS")),
+            UnixTimestamp(Literal("2020-01-27T20:06:11.847"), 
Literal("yyyy-MM-dd HH:mm:ss.SSS")),
+            UnixTimestamp(Literal("Unparseable"), Literal("yyyy-MM-dd 
HH:mm:ss.SSS")),
+            ToUnixTimestamp(Literal("2020-01-27T20:06:11.847"), 
Literal("yyyy-MM-dd HH:mm:ss.SSS")),
+            ToUnixTimestamp(Literal("Unparseable"), Literal("yyyy-MM-dd 
HH:mm:ss.SSS"))

Review comment:
       can we test one more case that throws `SparkUpgradeException`?




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