[hibernate-issues] [Hibernate-JIRA] Created: (HHH-3238) impossible to get the rowcount for a criteria that has projections

[hbMailingList (JIRA)]

impossible to get the rowcount for a criteria that has projections
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                 Key: HHH-3238
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3238
             Project: Hibernate3
          Issue Type: Bug
    Affects Versions: 3.2.6
         Environment: hibernate 3.2.6, oracle 10g
            Reporter: hbMailingList


Projections.rowCount correctly returns the NUMBER_OF_ROWS for the criteria's resultset.

However if the criteria already has a projection then rowcount no longer returns the NUMBER_OF_ROWS in the result set.

For example:
Criteria c=session.CreateCriteria(Cat.class);
ProjectionList pl = ...;
....
pl.add(Projections.groupProperty("color"));
pl.add(Projections.rowCount());
c.setProjections(pl);
c.list();

will result in the following query:
select color, count(*) from cats group by color

I would expect it to result in:
select count(*) from (select color from cats group by color)

after all if I wanted the count by color I could have simply done:
Projections.count(...)

I really need this feature for my project...if you don't think this will make the release, would you please give me a hint and I'll submit a patch.

Thanks for all the hard work.

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