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cameronjones
 Post subject: query help
PostPosted: Fri Mar 19, 2004 10:47 am 
Beginner
Beginner

Joined: Fri Oct 10, 2003 10:12 am
Posts: 39
hello,

i was hoping someone could tell me where i've gone wrong on this query, i've tried executing the sql generated and that works fine.

thanks, cam

HQL
Code:
select sum(i.quantity * i.unitPrice) from OrderItem as i where i.order.account = ?


SQL
Code:
select sum(orderitem0_.quantity*orderitem0_.unitPrice) as x0_0_ from OrderItem orderitem0_, Orders order1_ where (order1_.account=?  and orderitem0_.orderId=order1_.id)


Error
Code:
java.sql.SQLException: Column 'x1_0_' not found.
   at com.mysql.jdbc.ResultSet.findColumn(ResultSet.java:2260)
   at com.mysql.jdbc.ResultSet.getInt(ResultSet.java:1282)
   at org.apache.commons.dbcp.DelegatingResultSet.getInt(DelegatingResultSet.java:220)
   at net.sf.hibernate.type.IntegerType.get(IntegerType.java:18)
   at net.sf.hibernate.type.NullableType.nullSafeGet(NullableType.java:62)
   at net.sf.hibernate.type.NullableType.nullSafeGet(NullableType.java:53)
   at net.sf.hibernate.hql.QueryTranslator.getResultColumnOrRow(QueryTranslator.java:981)
   at net.sf.hibernate.loader.Loader.doQuery(Loader.java:221)
   at net.sf.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:132)
   at net.sf.hibernate.loader.Loader.doList(Loader.java:949)
   at net.sf.hibernate.loader.Loader.list(Loader.java:940)
   at net.sf.hibernate.hql.QueryTranslator.list(QueryTranslator.java:833)
   at net.sf.hibernate.impl.SessionImpl.find(SessionImpl.java:1475)
   at net.sf.hibernate.impl.SessionImpl.find(SessionImpl.java:1454)
   at net.sf.hibernate.impl.SessionImpl.find(SessionImpl.java:1450)
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michael
 Post subject:
PostPosted: Fri Mar 19, 2004 11:10 am 
Hibernate Team
Hibernate Team

Joined: Tue Sep 09, 2003 2:10 pm
Posts: 3246
Location: Passau, Germany
I think you will have to register the sum() function with the dialect. Take a look at MySqlDialect in CVS v22branch or at OracleDialect, there you can see how to do it.
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cameronjones
 Post subject:
PostPosted: Fri Mar 19, 2004 11:38 am 
Beginner
Beginner

Joined: Fri Oct 10, 2003 10:12 am
Posts: 39
so are you saying that i should extend the mysql dialet? i'm a bit confused on what i should need to register the sum function - the follwoing query works fine:

Code:
select sum(t.amount) from Transaction as t where t.account = ?


is it because i want to do a calculation within the sum?
cam
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