Re: OID Usage
От | Bo Lorentsen |
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Тема | Re: OID Usage |
Дата | |
Msg-id | 41E95CA8.1@netgroup.dk обсуждение исходный текст |
Ответ на | Re: OID Usage (Martijn van Oosterhout <kleptog@svana.org>) |
Ответы |
Re: OID Usage
|
Список | pgsql-general |
Martijn van Oosterhout wrote: >But where in the documentation did you see anything saying that they >were unique? I imagine you just inferred that from somewhere. I'm not >sure where the documentation should be changed since nowhere actually >recommends them in any way. > > Hmm, how about as a comment near by the PGoidValue function ? >Using the CTID, which locates the physical tuple as (block,num). When >you update a tuple, or vacuum moves it its CTID will change, so it's >not terribly useful from a user's point of view. > > Hmm, so a data row update also update the CTID in all indexes, too. I see what you mean ! >Hope this helps, > > It did, thanks. /BL
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