HHH-15495 - add test case

hibernate-core/src/test/java/org/hibernate/orm/test/aggregation/UuidAggregationTest.java

@@ -0,0 +1,47 @@
+package org.hibernate.orm.test.aggregation;
+
+import java.util.UUID;
+
+import org.hibernate.testing.TestForIssue;
+import org.hibernate.testing.orm.junit.DomainModel;
+import org.hibernate.testing.orm.junit.SessionFactory;
+import org.hibernate.testing.orm.junit.SessionFactoryScope;
+
+import org.junit.jupiter.api.Test;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+
+@DomainModel(annotatedClasses = { UuidAggregationTest.UuidIdentifiedEntity.class })
+@SessionFactory
+public class UuidAggregationTest {
+
+	@Entity(name = "UuidIdentifiedEntity")
+	public static class UuidIdentifiedEntity {
+
+		@Id
+		private UUID id;
+
+		public UuidIdentifiedEntity() {
+			super();
+		}
+
+		public UUID getId() {
+			return id;
+		}
+
+		public void setId(final UUID id) {
+			this.id = id;
+		}
+	}
+
+	@Test
+	@TestForIssue(jiraKey = "HHH-15495")
+	public void testMaxUuid(SessionFactoryScope scope) {
+		scope.inTransaction(
+				s -> {
+					s.createSelectionQuery( "select max(id) from UuidIdentifiedEntity", UUID.class ).getSingleResult();
+				}
+		);
+	}
+}