Yes, I forgot to add "at.name as AnimalType" in the select. It's not a real-life sample, it was just a way to try to describe what I am thinking about...
But I guess the answer is that only the "where" parts should be indexed, not the id's in the joins? /Jonas On Thu, Nov 26, 2009 at 3:38 PM, Igor Tandetnik <itandet...@mvps.org> wrote: > Jonas Sandman wrote: >> If you have a join in an SQL-query, how do you add the statements to >> optimize the query in an index? >> >> For example: >> >> select a.* from animals a >> join animaltype at on at.id=a.typeid >> where a.name='Monkey' and a.subspecies=2 > > Why are you joining with animaltype here? You don't seem to use it for > anything. > > Igor Tandetnik > > _______________________________________________ > sqlite-users mailing list > sqlite-users@sqlite.org > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users > _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
