From e8bd4e7cc5acd36c0773c2855fd5314804c3cdf2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20Kuruc?= <kuruc.v@chemosvit.sk>
Date: Fri, 7 Jun 2024 12:46:03 +0200
Subject: [PATCH] HHH-18246 Fix for Informix nulls precedence support

---
 .../hibernate/community/dialect/InformixDialect.java  | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/hibernate-community-dialects/src/main/java/org/hibernate/community/dialect/InformixDialect.java b/hibernate-community-dialects/src/main/java/org/hibernate/community/dialect/InformixDialect.java
index be5c846838..8c7aba57d6 100644
--- a/hibernate-community-dialects/src/main/java/org/hibernate/community/dialect/InformixDialect.java
+++ b/hibernate-community-dialects/src/main/java/org/hibernate/community/dialect/InformixDialect.java
@@ -18,6 +18,7 @@ import org.hibernate.community.dialect.sequence.SequenceInformationExtractorInfo
 import org.hibernate.community.dialect.unique.InformixUniqueDelegate;
 import org.hibernate.dialect.DatabaseVersion;
 import org.hibernate.dialect.Dialect;
+import org.hibernate.dialect.NullOrdering;
 import org.hibernate.dialect.Replacer;
 import org.hibernate.dialect.SelectItemReferenceStrategy;
 import org.hibernate.dialect.function.CaseLeastGreatestEmulation;
@@ -432,6 +433,16 @@ public class InformixDialect extends Dialect {
 		return SequenceInformationExtractorInformixDatabaseImpl.INSTANCE;
 	}
 
+	@Override
+	public NullOrdering getNullOrdering() {
+		return NullOrdering.SMALLEST;
+	}
+
+	@Override
+	public boolean supportsNullPrecedence() {
+		return getVersion().isSameOrAfter( 12, 10 );
+	}
+
 	@Override
 	public LimitHandler getLimitHandler() {
 		return limitHandler;