ParameterParser - if query contains the string "call" can cause Exception caused by check in ParameterParser.parse method ------------------------------------------------------------------------------------------------------------------------- Key: HHH-1563 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1563 Project: Hibernate Core Issue Type: Bug Components: query-hql Affects Versions: 3.1.2 Environment: Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_11-b06) Hibernate 3.1.2 (01.27.2006) PostgreSQL 7.4.9 Reporter: Chris Murphy Assignee: Strong Liu I created a query involving an object named "Call" (table call) which uncovered a potential bug in the ParameterParser. The ParameterParser.parse(String sqlString, Recognizer recognizer) method's first line does this check: boolean hasMainOutputParameter = sqlString.indexOf( "call" ) > 0 && sqlString.indexOf( "?" ) < sqlString.indexOf( "call" ) && sqlString.indexOf( "=" ) < sqlString.indexOf( "call" ); I haven't had a chance to dig deeper so I don't know what this is used for internally, but when I run this query: select count(distinct s.id)) from Subscription s where s.account.bill.id = ? and s.calls is empty This sets "hasMainOutputParameter" to true and causes the following Exception: org.hibernate.HibernateException: ordinal parameter mismatch messages: [Ljava.lang.String;@6b9dfe throwableCount: 1 throwables: [Ljava.lang.Throwable;@151a160 org.hibernate.engine.query.HQLQueryPlan.buildParameterMetadata(HQLQueryPlan.java:225) org.hibernate.engine.query.HQLQueryPlan.<init>(HQLQueryPlan.java:95) org.hibernate.engine.query.HQLQueryPlan.<init>(HQLQueryPlan.java:54) org.hibernate.engine.query.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:71) org.hibernate.impl.AbstractSessionImpl.getHQLQueryPlan(AbstractSessionImpl.java:134) org.hibernate.impl.AbstractSessionImpl.createQuery(AbstractSessionImpl.java:113) org.hibernate.impl.SessionImpl.createQuery(SessionImpl.java:1602) If I reverse the where clause of the query like so: select count(distinct s.id)) from Subscription s where s.calls is empty and s.account.bill.id = ? ..the check returns false as it should and the query succeeds. I'm in a rush right now, but I'll try and dig deeper and provide a test case and/or patch when I have a little more time.