| From: | hubert depesz lubaczewski <depesz(at)depesz(dot)com> |
|---|---|
| To: | Oleg <serovov(at)gmail(dot)com> |
| Cc: | pgsql-bugs(at)postgresql(dot)org |
| Subject: | Re: BUG #5852: Function date_trunc is not IMMUTABLE |
| Date: | 2011-01-27 13:26:49 |
| Message-ID: | 20110127132649.GA15777@depesz.com |
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| Thread: | |
| Lists: | pgsql-bugs |
On Thu, Jan 27, 2011 at 11:02:46AM +0000, Oleg wrote:
>
> The following bug has been logged online:
>
> Bug reference: 5852
> Logged by: Oleg
> Email address: serovov(at)gmail(dot)com
> PostgreSQL version: 8.3
> Operating system: CentOS
> Description: Function date_trunc is not IMMUTABLE
> Details:
>
> Please mark function date_trunc as IMMUTABLE for using in index.
it cannot be immutable. please check explanation in here:
http://www.depesz.com/index.php/2010/09/09/why-is-my-index-not-being-used/
search for "immutable".
Best regards,
depesz
--
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