Module "sql_postgres"
=====================

This module implements the POSTGRES database driver.

Load this module (and the "sql" module) and pass "postgres" as backend
driver name to sql_connect();

The string describing the database connection (the 2nd argument to
sql_connect()) is used as it is as PQconnectdb conninfo string.
A detailed description of the format of this string can be found at:

	http://www.postgresql.org/docs/8.0/interactive/libpq.html#AEN22513

Example given:

	var db = sql_connect("postgres", "host=dbserver user=postgres dbname=template1");

	foreach[] tuple (sql(db, "show all"))
		debug "${shift tuple} = ${shift tuple}";

 