Postfix with Postgres support

Howdy.

I’m new to SuSE, so forgive my ignorance if this is obvious; a thorough googling didn’t shed any light.

I’ve installed postfix, and postfix-postgresql.

Yet when I attempt to map a SQL command:

postmap -q user psql:/etc/postfix/sql
postmap: fatal: dict_open: unsupported dictionary type: psql: Is the postfix-psql package installed?

/usr/lib/postfix/dict_pgsql.so exists, so what am I missing?

Quick followup:

I had the map type set incorrectly; my apologies. pgsql isn’t the same thing as psql…