Michael Glaesemann ha scritto: > > On Jul 28, 2006, at 17:37 , Manlio Perillo wrote: > >> There can be performancs problems in having primary keys of type TEXT? >> What about having a primary key of 3 columns (all of type TEXT)? > > What defines a problem in terms of performance is heavily dependent on > your particular needs and requirements. What are your requirements? What > profiling have you done to see where your performance bottlenecks may be? >
I still don't have done profiling. Simply in the first version of my schema I used serial keys but the result is ugly and it force me to do a lot of joins. Thanks and regards Manlio Perillo ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend
