Order DataSourceScriptDatabaseInitializer last

Change the order of `DataSourceScriptDatabaseInitializerDetector` so
that it always runs last. This update allows script initialization to
be combined with a high-level migration tool such as Flyway.

Closes gh-26692

Author: philwebb

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/jdbc/init/DataSourceScriptDatabaseInitializerDetector.java

@@ -21,6 +21,7 @@
 
 import org.springframework.boot.sql.init.dependency.AbstractBeansOfTypeDatabaseInitializerDetector;
 import org.springframework.boot.sql.init.dependency.DatabaseInitializerDetector;
+import org.springframework.core.Ordered;
 
 /**
  * A {@link DatabaseInitializerDetector} for {@link DataSourceScriptDatabaseInitializer}.
@@ -29,9 +30,16 @@
  */
 class DataSourceScriptDatabaseInitializerDetector extends AbstractBeansOfTypeDatabaseInitializerDetector {
 
+	static final int PRECEDENCE = Ordered.LOWEST_PRECEDENCE - 100;
+
 	@Override
 	protected Set<Class<?>> getDatabaseInitializerBeanTypes() {
 		return Collections.singleton(DataSourceScriptDatabaseInitializer.class);
 	}
 
+	@Override
+	public int getOrder() {
+		return PRECEDENCE;
+	}
+
 }

spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-flyway/src/main/resources/data.sql

@@ -0,0 +1 @@
+insert into PERSON (first_name, last_name) values ('Phillip', 'Webb');

spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-flyway/src/test/java/smoketest/flyway/SampleFlywayApplicationTests.java

@@ -32,7 +32,7 @@ class SampleFlywayApplicationTests {
 
 	@Test
 	void testDefaultSettings() {
-		assertThat(this.template.queryForObject("SELECT COUNT(*) from PERSON", Integer.class)).isEqualTo(1);
+		assertThat(this.template.queryForObject("SELECT COUNT(*) from PERSON", Integer.class)).isEqualTo(2);
 	}
 
 }