Re: Last event per user
Michael Lewis <[email protected]>
| Newsgroups | gmane.comp.db.postgresql.performance |
|---|---|
| Message-ID | <CAHOFxGpUwcjhs9trJwAkNNhY8doyi2shzCr=2ymLk+-3RzJhrA@mail.gmail.com> |
It seems like it should be- SELECT * FROM users u JOIN last_user_event_1 e USING (user_id,user_group); --OR-- SELECT * FROM last_user_event_2 e; for them to produce the same result set, since the last_user_event_2 already (could) have users info in it very simply by select * instead of e.* in that view definition. Are there other important joins/where/order by/limits that would be on this "main query" that is just SELECT * FROM ____ right now which you have dropped to try to simplify the example?