Maximilian Tyrtania <maximilian.tyrta...@onlinehome.de> writes: > am 07.05.2009 20:54 Uhr schrieb Scott Marlowe unter scott.marl...@gmail.com: >> Yeah, that does seem odd. Could it be something like nulls in your >> data set? just guessing really. If you could make a small test case >> that shows it happening and allows others to reproduce it you're >> likely to get more bites.
> It doesn't seem to be related to null values (which wouldn't explain it > anyway) nor to this particular field... Can you reproduce it in other contexts than specifically count(distinct)? In particular I'd try select count(*) from (select distinct f.bezeichnung from firmen f) ss; select count(*) from (select distinct f.bezeichnung||'e' from firmen f) ss; If those give the same numbers as you're showing here, then the next step would be to dump out the actual results of the SELECT DISTINCT queries and compare them --- looking at the actual data values should give some insight as to what's happening. BTW, what is the datatype of f.bezeichnung, and what locale are you running in? regards, tom lane -- Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-sql