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This kind of eager fetch cannot be done at all with limit() and start() restrictions in place. DomUI will abort your query if it can see that you are eagerly fetching with limit() in place. You need to find another solution.

Child conditions in QCriteria

In DomUI, very simple conditions on a child relation like the above will be automatically translated into an "exists" subquery by it. This only works for simple queries because it is hard to do right for complex ones (combinatory conditions on both a child and the parent record are hard to specify properly). The best way to handle child relation criteria is to create the subselect yourself using QCriteria, like this: