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To: Ludek Finstrle <luf@pzkagis.cz>
cc: pgsql-interfaces@postgresql.org, pgsql-odbc@postgresql.org
Subject: Re: [ODBC] BLOB handling compatibility with PostgreSQL > 7.4 
In-reply-to: <20051206192749.GA24711@soptik.pzkagis.cz> 
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Comments: In-reply-to Ludek Finstrle <luf@pzkagis.cz>
	message dated "Tue, 06 Dec 2005 20:27:49 +0100"
Date: Tue, 06 Dec 2005 14:59:40 -0500
Message-ID: <15637.1133899180@sss.pgh.pa.us>
From: Tom Lane <tgl@sss.pgh.pa.us>
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Ludek Finstrle <luf@pzkagis.cz> writes:
>> If you want an add-on datatype that is really different from OID, then
>> make a real datatype (CREATE TYPE).  You can still piggyback on OID as
>> the representation type --- steal its I/O functions and so on.

> Does it cover lo_export which need oid as second parameter?

You could make an implicit cast from lo to oid ... perhaps not the other
direction, though.

			regards, tom lane