dblink password required

Hi,

I’m trying to use dblink to connect from database1 to database2 on the same machine. The Postgres version is 9.3.5.

Firstly, I’ve created a user to use with the connection, while logged in as the postgres superuser to database2:

> create user db_link with password ‘mypassword’;
> grant select on appuser to db_link;

Secondly, the following has been added to pg_hba.conf and a restart done.

# dblink between database1 and database2
local database2   db_link                               md5
host database2    db_link       127.0.0.1/32            md5
host database2    db_link       ::1/128                 md5

Connecting with PSQL prompts for a password as expected:

> psql -U db_link -d database2
Password for user db_link:
psql (9.3.5)
Type "help" for help.

Then, as a normal user logged into database1, I tried

> select * from dblink(‘dbname=database2 username=db_link password=mypassword','select username, email from appuser')
ast1(username text, email text); 

However this returns

ERROR:  password is required
DETAIL:  Non-superusers must provide a password in the connection string.

This is my first time trying dblink so there’s probably something simple I’m missing, but I thought I had provided a
password.Any ideas? 

Regards
Oliver Kohll