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From: Brijesh Shrivastav <Bshrivastav@esri.com>
To: PostgreSQL Interfaces <pgsql-interfaces@postgresql.org>
Subject: Libpq and transactions
Date: Tue, 6 Jul 2004 16:50:49 -0700 
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Hi! 

I have a question about how transaction behaves in libpq library.
It is very clear in doc that PQexec treats each command (which could 
comprise of more than one sql command) as a single transactions. 
Does PQexecParams() and PQexecPrepared() also behaves the same?
Is there a way to send multiple sql commands separately through
libpq library and rollback if nth command fails. For example, Can I
insert 5 rows using PQexecParams() and rollback all 5 rows if
sixth insert fails?

Regards,
Brijesh