Re: simple query running for ever
| От | Justin Pryzby |
|---|---|
| Тема | Re: simple query running for ever |
| Дата | |
| Msg-id | 20200616223330.GL20404@telsasoft.com обсуждение исходный текст |
| Ответ на | Re: simple query running for ever (Andreas Joseph Krogh <andreas@visena.com>) |
| Список | pgsql-performance |
On Wed, Jun 17, 2020 at 12:10:37AM +0200, Andreas Joseph Krogh wrote: > På onsdag 17. juni 2020 kl. 00:05:26, skrev Justin Pryzby <pryzby@telsasoft.com>: > On Tue, Jun 16, 2020 at 08:35:31PM +0000, Nagaraj Raj wrote: > > I wrote a simple query, and it is taking too long, not sure what is wrong in it, even its not giving EXPLAIN ANALYZE. > > > > from "cms_prospects".PROSPECT T0 > > left join "cms_prospects".INDIVIDUAL_DEMOGRAPHIC T2 on T0."individual_entity_proxy_id" = T2."individual_entity_proxy_id" > > Pardon me for saying so, but this query seems silly. > > It's self-joining a table on its PK, which I don't think could ever be useful. > > Where is the self-join? Sorry, I misread. I see now that "cms_prospects" refers to the database. -- Justin
В списке pgsql-performance по дате отправления: