Distinct oddity

Hi there,

does this look right?

FAKDB=# select count(distinct(f.land)) from firmen f where
f.typlist='Redaktion';
count
-------
1975
(1 row)

FAKDB=# select count(distinct(f.land||'1')) from firmen f where
f.typlist='Redaktion';
count
-------
4944
(1 row)

FAKDB=# select version();
version
----------------------------------------------------------------------------
----------------------------------------------------------
PostgreSQL 8.3.3 on powerpc-apple-darwin, compiled by GCC
i686-apple-darwin8-gcc-4.0.1 (GCC) 4.0.1 (Apple Computer, Inc. build 5370)
(1 row)

Why would the 2 queries give different results? No inserts occurred in the
meantime.

tia,

Maximilian Tyrtania