Re: random access - bytea

From: Dennis Bjorklund <db(at)zigo(dot)dhs(dot)org>
To: Hannu Krosing <hannu(at)tm(dot)ee>
Cc: Joe Conway <mail(at)joeconway(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: random access - bytea
Date: 2003-10-26 15:04:46
Message-ID: Pine.LNX.4.44.0310261602000.3817-100000@zigo.dhs.org
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On Sun, 26 Oct 2003, Hannu Krosing wrote:

> I brought it up once and Tom answered that TOAST tables are not
> transaction aware, so you can't update just some parts of toasted
> entities - you must always write the whole fields. So this will not be
> just an api change.

Yes, the blocks (or what one selects to work with) in a toasted field have
to have transaction stuff stored, just like tuples. That is clear if
different transactions shall have different views of the "file".

--
/Dennis

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