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From: Hannu Krosing <hannu@trust.ee>
To: Michael Yeung <michaely@alphanet.net.au>
Cc: 'Interfaces of Postgres' <pgsql-interfaces@postgreSQL.org>
Subject: Re: [INTERFACES] 'xmin' column in the Access 97
Date: Wed, 22 Jul 1998 11:55:17 +0300
Message-ID: <35B5A8F5.A69D7D22@trust.ee> (raw)
References: <01BDB564.EFA72E70@wynyard.alphanet.net.au>

Michael Yeung wrote:
> 
> Dear all,
> 
> I am using the latest ODBC Driver to connect to the Postgres DataBase !
> Then I use Access 97 to link the table in the postgres database with 
> this latest ODBC Driver behind a firewall.
> 
> However, an additional column called 'xmin' appears for which 
> contains a six digit number. This 'xmin' column IS NOT CREATED 
> in the Postgres Database !

This is one of the "system" columns in PostgreSQL (minimum transaction,
i think), there ar also others - oid, xmax, cmin, tmax,ctid.

Have you checked system tables or system columns anywhere in the driver
setup ?

Do you also see any other system columns ?

Hannu



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