locking granularity

From: Chandralaksana Natalia <npostgresql(at)yahoo(dot)com>
To: pgsql-novice(at)postgresql(dot)org
Subject: locking granularity
Date: 2003-02-05 01:26:09
Message-ID: 20030205012609.86049.qmail@web14709.mail.yahoo.com
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Does anyone know, or know where to find, information about whether postgresql allows you to lock a tuple, a table, a page?

When the source code refers to oid, is it tuple id, or it could mean a table id/ or some other objects' id?

Thanks a lot,

Natalia Chandralaksana

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