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Getting oid with libpq

From: "Johan C(dot) de Koning" <johan(dot)de(dot)koning(at)geodan(dot)nl>
To: <pgsql-interfaces(at)postgresql(dot)org>
Subject: Getting oid with libpq
Date: 2005-08-10 09:33:35
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Lists: pgsql-interfaces


I have stored some large objects (which are images) with the lo_import
function. Now I can read the images with the other functions like lo_read
within libpq. But I have one problem with the oid I have to give to this
method. Inside my program I will do a select like this


Select texture from building_face where face_id > 100;


Textures is the oid field. When I use PQgetValue() I get a complete
different value then when I do  a select inside pgAdmin. How can I get the
same oid so that I can use this for reading the data of the images inside my
c++ program. Because it is not working with the oid from PQgetValue. 


Best regards,


Johan de Koning




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