[date](parser) Support DateV1 keyword (#25414)

fe/fe-core/src/main/java/org/apache/doris/nereids/parser/LogicalPlanBuilder.java

@@ -1646,6 +1646,8 @@ public class LogicalPlanBuilder extends DorisParserBaseVisitor<Object> {
                 return Config.enable_date_conversion ? new DateTimeV2Literal(value) : new DateTimeLiteral(value);
             case "DATEV2":
                 return new DateV2Literal(value);
+            case "DATEV1":
+                return new DateLiteral(value);
             default:
                 throw new ParseException("Unsupported data type : " + type, ctx);
         }