Informix does support hypothetical set functions ❤️

Author: gavinking

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

@@ -349,6 +349,7 @@ public void initializeFunctionRegistry(FunctionContributions functionContributio
 		functionFactory.variance();
 		functionFactory.bitLength_pattern( "length(?1)*8" );
 		functionFactory.varPop_sumCount();
+		functionFactory.hypotheticalOrderedSetAggregates();
 
 		final SqmFunctionRegistry functionRegistry = functionContributions.getFunctionRegistry();
 		final TypeConfiguration typeConfiguration = functionContributions.getTypeConfiguration();

hibernate-core/src/test/java/org/hibernate/orm/test/query/criteria/CriteriaWindowFunctionTest.java

@@ -9,6 +9,7 @@
 
 import org.hibernate.cfg.AvailableSettings;
 import org.hibernate.community.dialect.AltibaseDialect;
+import org.hibernate.community.dialect.InformixDialect;
 import org.hibernate.dialect.DB2Dialect;
 import org.hibernate.dialect.SQLServerDialect;
 import org.hibernate.query.criteria.HibernateCriteriaBuilder;
@@ -199,6 +200,7 @@ public void testFirstValue(SessionFactoryScope scope) {
 	@Test
 	@SkipForDialect(dialectClass = SQLServerDialect.class, reason = "No support for nth_value function")
 	@SkipForDialect(dialectClass = DB2Dialect.class, majorVersion = 10, reason = "No support for nth_value function")
+	@SkipForDialect(dialectClass = InformixDialect.class, reason = "No support for nth_value function")
 	public void testNthValue(SessionFactoryScope scope) {
 		scope.inTransaction(
 				session -> {