Re: Two queries are better than one?
| От | Karim Nassar |
|---|---|
| Тема | Re: Two queries are better than one? |
| Дата | |
| Msg-id | 1122610899.11862.63.camel@localhost.localdomain обсуждение исходный текст |
| Ответ на | Re: Two queries are better than one? (Gnanavel S <s.gnanavel@gmail.com>) |
| Ответы |
Re: Two queries are better than one?
|
| Список | pgsql-performance |
On Fri, 2005-07-29 at 09:41 +0530, Gnanavel S wrote: > > Joined: > > test=> explain analyze > test-> SELECT cli_name,order.* > test-> FROM order > test-> JOIN client ON (ord_client = cli_code) > test-> WHERE ord_batch='343B' AND > ord_id='12-645'; > > where is the cli_code condition in the above query? I don't understand the question. ord_client is the client code, and cli_code is the client code, for their respective tables. batch/id is unique, so there is only one record from order, and only one client to associate. Clearer? -- Karim Nassar <karim.nassar@acm.org>
В списке pgsql-performance по дате отправления: