| From: | Richard Huxton <dev(at)archonet(dot)com> |
|---|---|
| To: | ilejn(at)yandex(dot)ru |
| Cc: | pgsql-general(at)postgresql(dot)org |
| Subject: | Re: xmin |
| Date: | 2006-08-03 17:09:23 |
| Message-ID: | 44D22DC3.9050804@archonet.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-general |
Ilja Golshtein wrote:
> Hello!
>
> Is it Ok to use xmin column in application programm?
>
> Purpose is obvios: I need to know the record was not changed since
> a moment in the past and things like this.
> So every UPDATE should somehow change value of the column.
>
> The choice it trigger or xmin.
> Which is better (from perfomance, reliability, compartibility,
> whatever, point of view)?
The only problem with using xmin is that it's not portable. You won't
find it in Mysql/Oracle etc.
--
Richard Huxton
Archonet Ltd
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Carlo Stonebanks | 2006-08-03 17:17:12 | Pl/TCL: Is my Windows install missing scripts? |
| Previous Message | Richard Huxton | 2006-08-03 17:08:40 | Re: Vacuum, Analyze, ReIndex from within VB.NET 2003 |