Re: binary data storage

From: Martín Marqués <martin(at)bugs(dot)unl(dot)edu(dot)ar>
To: PostgreSQL Mailing Lists-General <pgsql-general(at)postgresql(dot)org>
Subject: Re: binary data storage
Date: 2002-04-04 12:07:45
Message-ID: 20020404120747.7AA87FA1D@bugs.unl.edu.ar
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On Jue 04 Abr 2002 06:42, you wrote:
> Hi Marin,
>
> On Thu, 4 Apr 2002, Marin Dimitrov wrote:
> > search for "large objects" in the Programmer's Guide (
> > http://www.ca.postgresql.org/users-lounge/docs/#7.2 )
> >
> > in your case Large Objects (chapter 2 from the Programmer's Guide) may be
> > more appropriate than binary strings (chapter 3.4 from the User's Guide)
>
> Thanks alot. Also searched php manual and wrote the following simple code:
>
> <?
> $conn = Pg_Connect (......);
> pg_exec ($conn, "begin");
> $oid = pg_locreate ($conn);
> echo ("$oid\n");
> $handle = pg_loopen ($conn, $oid, "w");
> echo ("$handle\n");
> pg_loimport ("/etc.tar.gz");
> pg_lowrite ($handle, "/etc.tar.gz");

This is something that confuses me:
What does pg_loimport do, and what does pg_lowrite do?

> pg_loclose ($handle);
> pg_exec ($conn, "commit");
> ?>

Another question I have about using PHP and PostgreSQL Large Objects, is that
in no place there is a reference to where the lo will be stored?

I mean, where will /etc.tar.gz be stored in the Database?

Saludos... :-)

--
Porqué usar una base de datos relacional cualquiera,
si podés usar PostgreSQL?
-----------------------------------------------------------------
Martín Marqués | mmarques(at)unl(dot)edu(dot)ar
Programador, Administrador, DBA | Centro de Telematica
Universidad Nacional
del Litoral
-----------------------------------------------------------------

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