party_party, gnuhealth_healthprofessional y gnuhealth_hp_specialty.
Esta es la consulta en SQL que funciona a la perfección...
SELECT gnuhealth_hp_specialty.specialty, party_party.lastname, party_party.name, party_party.id, gnuhealth_healthprofessional.main_specialty FROM public.gnuhealth_healthprofessional, public.gnuhealth_hp_specialty, public.party_party WHERE gnuhealth_healthprofessional.main_specialty = gnuhealth_hp_specialty.id AND party_party.id = gnuhealth_healthprofessional.name AND gnuhealth_hp_specialty.specialty = 78;
Bueno espero respuestas... desde ya muchas gracias!!!!!