getSingleResult breaks native queries ------------------------------------- Key: EJB-414 URL: http://opensource.atlassian.com/projects/hibernate/browse/EJB-414 Project: Hibernate Entity Manager Issue Type: Bug Components: EntityManager Affects Versions: 3.4.0.GA Environment: Hibernate 3.3.1.GA, Oracle 9i Reporter: ChB Mapping: @NamedNativeQuery(name = "X", query = "{? = call XYZ(?, ?)}", resultSetMapping = "XM", hints = { @QueryHint(name = "org.hibernate.callable", value = "true") }) @SqlResultSetMapping(name = XM", columns = { @ColumnResult(name = "x") }) DAO: final Query q = this.em.createNamedQuery("X"); q.setParameter(1, "whatever"); q.setParameter(2, "whatever"); final String x = (String) q.getSingleResult(); Causes hibernate to die with: [main] org.hibernate.SQL: select * from ( {? = call XYZ(?, ?)} ) where rownum <= ? This happens because the query (class SQLQueryImpl) has a selection.maxRows value of 2 for no reason by the following line (QueryImpl.java:87) if (maxResults != 1) query.setMaxResults( 2 ); This line should not be executed if the underlying query is a native query. As it will break like shown in http://forum.hibernate.org/viewtopic.php?p=2406045 and you have no chance of fixing it. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira