cloud-fan commented on code in PR #36871:
URL: https://github.com/apache/spark/pull/36871#discussion_r927358619


##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/csv/UnivocityParser.scala:
##########
@@ -197,34 +198,46 @@ class UnivocityParser(
         Decimal(decimalParser(datum), dt.precision, dt.scale)
       }
 
-    case _: TimestampType => (d: String) =>
+    case _: DateType => (d: String) =>
       nullSafeDatum(d, name, nullable, options) { datum =>
         try {
-          timestampFormatter.parse(datum)
+          dateFormatter.parse(datum)
         } catch {
           case NonFatal(e) =>
             // If fails to parse, then tries the way used in 2.0 and 1.x for 
backwards
             // compatibility.
             val str = 
DateTimeUtils.cleanLegacyTimestampStr(UTF8String.fromString(datum))
-            DateTimeUtils.stringToTimestamp(str, 
options.zoneId).getOrElse(throw e)
+            DateTimeUtils.stringToDate(str).getOrElse(throw e)
         }
       }
 
-    case _: TimestampNTZType => (d: String) =>
-      nullSafeDatum(d, name, nullable, options) { datum =>
-        timestampNTZFormatter.parseWithoutTimeZone(datum, false)
-      }
-
-    case _: DateType => (d: String) =>
+    case _: TimestampType => (d: String) =>
       nullSafeDatum(d, name, nullable, options) { datum =>
         try {
-          dateFormatter.parse(datum)
+          timestampFormatter.parse(datum)
         } catch {
           case NonFatal(e) =>
             // If fails to parse, then tries the way used in 2.0 and 1.x for 
backwards
             // compatibility.
             val str = 
DateTimeUtils.cleanLegacyTimestampStr(UTF8String.fromString(datum))
-            DateTimeUtils.stringToDate(str).getOrElse(throw e)
+            DateTimeUtils.stringToTimestamp(str, options.zoneId).getOrElse {

Review Comment:
   I think the issue here is, if the timestamp parsing fails, maybe it's 
because this is a date, or maybe it's a legacy timestamp format. We need to 
define the priority here. Since `inferDate` is opt-in, I think it makes more 
sense to try parsing as date first, then the legacy format.
   
   cc @sadikovi 



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