Good way to understand MVCC feature is XID(transaction-id) and with the help of hidden columns prefixed for each row in a table. You need to test with doing DML(update/Delete/Insert) statements by opening multiple sessions to know about MVCC feature.
Eg:-
select xmin,xmax,cmin,cmax,ctid, * from <tablename>;
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Regards,
Raghavendra
EnterpriseDB Corporation
On Sun, Oct 23, 2011 at 9:01 AM, AI Rumman
<rummandba@gmail.com> wrote:
Is there any tools by which I can test out the MVCC feature of postgresql?