[Dovecot] logs show two connections to database even though using static driver

hi,

im using:

passdb { driver = sql args = /etc/dovecot/dovecot-sql.conf.ext }

userdb { driver = static args = uid=vmail gid=vmail home=/home/vmail/%d/ mail=mdbox:/home/vmail/%d/%n }

this works fine on a test machine but i still see *2* instead of 1 connections to the pgsql db before a successful login is logged.. how can i avoid these extra connections?:

Apr 17 11:34:49 merlin dovecot: auth: pgsql(localhost): Connected to database users Apr 17 11:34:50 merlin dovecot: auth: pgsql(localhost): Connected to database users Apr 17 11:34:50 merlin dovecot: imap-login: Login: user=<gary@example.org>, ...