troubles with datestyle

Hi

Is there a way to select by date in format which is language independent.

select name, ....., date from table
where date >= '1-1-1999' and date <= '11-1-1999';

I use the Perl DBI und Postgres DBD driver. In the begin of the session
I set the datestyle variable to the current user language (german or us).
I loose this setting when I set the datestyle to 'german'. When I
do a

select name, ....., date from table
where date >= '1.1.1999' and date <= '1.11.1999';

the resultset is from january first to january 11 instead to the first of
november.

Any hints?
Herbie

--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Herbert Liechti E-Mail: Herbert(dot)Liechti(at)thinx(dot)ch
ThinX networked business services Stahlrain 10, CH-5200 Brugg
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~