| From: | Justin Pryzby <pryzby(at)telsasoft(dot)com> |
|---|---|
| To: | Andreas Joseph Krogh <andreas(at)visena(dot)com> |
| Cc: | pgsql-performance(at)lists(dot)postgresql(dot)org |
| Subject: | Re: simple query running for ever |
| Date: | 2020-06-16 22:33:30 |
| Message-ID: | 20200616223330.GL20404@telsasoft.com |
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| Thread: | |
| Lists: | 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(at)telsasoft(dot)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
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