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From: Tom Lane <tgl@sss.pgh.pa.us>
To: p.sun.fun@gmail.com
cc: pgsql-sql@lists.postgresql.org
Subject: Re: libpq CREATE DATABASE operation from multiple treads
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Comments: In-reply-to p.sun.fun@gmail.com
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p.sun.fun@gmail.com writes:
> I run this function using only one thread and everything works great.
> If I use two threads, the PQresultStatus(res) != PGRES_COMMAND_OK.

Are you trying to use the same PGconn from multiple threads?  That
will not work --- at least not without interlocks that libpq on
its own does not provide.

> Can the server handle CREATE DATABASE requests in parallel? 

Sure.  But they have to be issued over different connections.
Any given connection can only do one thing at a time.

			regards, tom lane