pg_connect("host=localhost port=5432 user=postgres password=pottery dbname=postgres")
        or die("could not connect to pg db");

 

how would I test to display the records on the table mailing_list_sources with fields id and name  ?

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The PostgreSQL host configuration file /etc/postgresql/pg_hba.conf was not found on your system. Maybe PostgreSQL has not been initialised, or your module configuration is incorrect.