extract pattern for NATIVE on Informix

Author: gavinking

hibernate-community-dialects/src/main/java/org/hibernate/community/dialect/InformixDialect.java

@@ -435,6 +435,7 @@ public String extractPattern(TemporalUnit unit) {
 			case HOUR -> "to_number(to_char(?2,'%H'))";
 			case DAY_OF_WEEK -> "(weekday(?2)+1)";
 			case DAY_OF_MONTH -> "day(?2)";
+			case NATIVE -> "((to_number(cast(cast(sum(?2) as interval day(9) to day) as varchar(12)))*86400+mod(to_number(cast(cast(sum(?2) as interval second(6) to second) as varchar(9))),86400)+to_number(cast(cast(sum(?2) as interval fraction to fraction) as varchar(6))))*1e3)";
 			default -> "?1(?2)";
 		};
 	}

hibernate-core/src/test/java/org/hibernate/orm/test/jpa/criteria/basic/ExpressionsTest.java

@@ -301,7 +301,8 @@ public void testSumWithSubqueryPath() {
 		);
 	}
 
-	@Test @SkipForDialect(dialectClass = SybaseDialect.class, matchSubTypes = true, reason = "numeric overflows")
+	@Test
+	@SkipForDialect(dialectClass = SybaseDialect.class, matchSubTypes = true, reason = "numeric overflows")
 	@SkipForDialect(dialectClass = PostgresPlusDialect.class, reason = "does not support extract(epoch)")
 	@SkipForDialect(dialectClass = AltibaseDialect.class, reason = "datediff overflow limits")
 	public void testDateTimeOperations() {
@@ -372,6 +373,11 @@ public void testDateTimeOperations() {
 					assertEquals( 150*60L, entityManager.createQuery(criteria).getSingleResult() );
 				}
 		);
+	}
+
+	@Test
+	void testDurationBetween() {
+		HibernateCriteriaBuilder builder = (HibernateCriteriaBuilder) this.builder;
 		doInJPA(
 				this::entityManagerFactory,
 				entityManager -> {