> SELECT * FROM wan ORDER BY stime LIMIT 50 OFFSET 81900;
you need to try and solve the problem without using 'offset'. you could do:
BEGIN;
DECLARE crs cursor FOR SELECT * FROM wan ORDER BY stime;
FETCH ABSOLUTE 81900 in crs;
FETCH 49 in crs;
CLOSE crs;
COMMIT;
this may be a bit faster but will not solve the fundamental problem.
the more interesting question is why you want to query exactly 81900
rows into a set. This type of thinking will always get you into
trouble, absolute positioning will not really work in a true sql
sense. if you are browsing a table sequentially, there are much
better methods.
merlin