integration tests via spring, hsqldb doesn't recognize "use index" - spring

Question

I have a spring project with the dao and integration tests for it. For integration tests I am using hsqldb.
Everything was ok, untill I had to add "USE INDEX" command to my query. The application works fine and fetches records as expected.
But tests started to faile with SQL exception "Unexpeced token USE in command".
So I am wondering, is there any way to configure htsqldb to recognize "USE INDEX" statement? Thanks
My Dao looks like the following:
public interface SomeDao extends CrudRepository<Mapping, Integer> {
#Query(value = "SELECT mm.record_id" +
" FROM mappings mm" +
" USE INDEX (mapping_indx)" +
" JOIN records ss ON mm.record_id = ss.id "
" WHERE mm.name= :name", nativeQuery = true)
public List<Integer> getRecordsIds(#Param("name") String name);
}
My test example:
#RunWith(SpringJUnit4ClassRunner.class)
#ContextConfiguration("classpath*:testContext.xml")
public class SimpleTEst{
#Autowired
private SomeDao someDao;
//...other daos
#Test
public void testDao() {
//...test background creation
List<Integer> actualList = someDao.getRecordsIds("testing");
assertEquals(expectedList, actualList);
}
}
testContext.xml contains the following settings
<bean id="dataSource" class="org.apache.tomcat.jdbc.pool.DataSource" destroy-method="close">
<property name="driverClassName" value="org.hsqldb.jdbcDriver"/>
<property name="url" value="jdbc:hsqldb:mem:myTest"/>
<property name="username" value="sa"/>
<property name="password" value=""/>
</bean>
<bean id="jpaDialect" class="org.springframework.orm.jpa.vendor.HibernateJpaDialect"/>
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="dataSource"/>
<property name="jpaDialect" ref="jpaDialect"/>
<property name="persistenceXmlLocation" value="classpath*:/META-INF/persistence.xml"/>
<property name="jpaProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.HSQLDialect</prop>
<prop key="hibernate.show_sql">false</prop>
<prop key="hibernate.format_sql">false</prop>
<prop key="hibernate.cache.use_second_level_cache">false</prop>
<prop key="hibernate.hbm2ddl.auto">create</prop>
</props>
</property>
</bean>
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="dataSource" ref="dataSource"/>
<property name="entityManagerFactory" ref="entityManagerFactory"/>
</bean>
<bean id="namingStrategy" class="org.hibernate.cfg.ImprovedNamingStrategy"/>

Answer 1

different dbs are not compatible so, in general, you can't run same sql on both of them. you have a few quick potential workarounds:
teach your test database new constructs/functions. in some in-memory dbs you can register new functions. not sure if it's your case
skip some tests when running on different-vendor-db. if you don't test also on same-vendor-db then this actually mean: remove the test :(
create/choose query dynamically base on your runtime-detected vendor. this way you can limit tested part of query
to summarize: there is probably absolutely no way to test use index on hsqldb. you should test it on real db. if you really want to stick to hsqldb, what you can do is to try to test as similar query as possible... but not the same, sorry