Add sequence support for AOT dialect.

Closes #4103

spring-data-jpa/src/main/java/org/springframework/data/jpa/repository/aot/AotMetamodel.java

@@ -33,6 +33,8 @@ import org.hibernate.cfg.JdbcSettings;
 import org.hibernate.cfg.PersistenceSettings;
 import org.hibernate.cfg.QuerySettings;
 import org.hibernate.dialect.Dialect;
+import org.hibernate.dialect.sequence.ANSISequenceSupport;
+import org.hibernate.dialect.sequence.SequenceSupport;
 import org.hibernate.engine.jdbc.connections.internal.UserSuppliedConnectionProviderImpl;
 import org.hibernate.jpa.HibernatePersistenceProvider;
 import org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl;
@@ -137,7 +139,14 @@ class AotMetamodel implements Metamodel {
 	 */
 	@SuppressWarnings("deprecation")
 	static class SpringDataJpaAotDialect extends Dialect {
+
 		static SpringDataJpaAotDialect INSTANCE = new SpringDataJpaAotDialect();
+
+		@Override
+		public SequenceSupport getSequenceSupport() {
+			return ANSISequenceSupport.INSTANCE;
+		}
+
 	}
 
 }

spring-data-jpa/src/test/java/org/springframework/data/jpa/repository/aot/AotMetamodelUnitTests.java

@@ -0,0 +1,34 @@
+/*
+ * Copyright 2025 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.jpa.repository.aot;
+
+import static org.assertj.core.api.Assertions.*;
+
+import org.junit.jupiter.api.Test;
+
+/**
+ * Unit tests for {@link AotMetamodel}.
+ *
+ * @author Mark Paluch
+ */
+class AotMetamodelUnitTests {
+
+	@Test // GH-4103
+	void dialectSupportsSequences() {
+		assertThat(AotMetamodel.SpringDataJpaAotDialect.INSTANCE.getSequenceSupport().supportsSequences()).isTrue();
+		assertThat(AotMetamodel.SpringDataJpaAotDialect.INSTANCE.getSequenceSupport().supportsPooledSequences()).isTrue();
+	}
+}