@@ -1702,6 +1702,11 @@ pub trait Dialect: Debug + Any {
         false
     }
 
+    /// Whether TIMESTAMP WITHOUT TIME ZONE precision follows the full type name.
+    fn supports_timestamp_without_timezone_trailing_precision(&self) -> bool {
+        false
+    }
+
     /// Returns true if the dialect supports the `INTERVAL` data type with [Postgres]-style options.
     ///
     /// Examples:
 
@@ -1187,6 +1187,10 @@ impl Dialect for SnowflakeDialect {
         true
     }
 
+    fn supports_timestamp_without_timezone_trailing_precision(&self) -> bool {
+        true
+    }
+
     fn supports_from_trailing_commas(&self) -> bool {
         true
     }
 
@@ -15690,6 +15690,11 @@ impl<'a> Parser<'a> {
                         }
                     } else if self.parse_keyword(Keyword::WITHOUT) {
                         self.expect_keywords(&[Keyword::TIME, Keyword::ZONE])?;
+                        if precision.is_none()
+                            && self.dialect.supports_timestamp_without_timezone_trailing_precision()
+                        {
+                            precision = self.parse_optional_precision()?;
+                        }
                         TimezoneInfo::WithoutTimeZone
                     } else {
                         TimezoneInfo::None
Original file line number	Diff line number	Diff line change
`@@ -1187,6 +1187,10 @@ impl Dialect for SnowflakeDialect {`
`1187`	`1187`	`true`
`1188`	`1188`	`}`
`1189`	`1189`
	`1190`	`+ fn supports_timestamp_without_timezone_trailing_precision(&self) -> bool {`
	`1191`	`+ true`
	`1192`	`+ }`
	`1193`	`+`
`1190`	`1194`	`fn supports_from_trailing_commas(&self) -> bool {`
`1191`	`1195`	`true`
`1192`	`1196`	`}`