The following bug has been logged online:
Bug reference: 3791
Logged by: Michailas
Email address: michailas.p@gmail.com
PostgreSQL version: 8.2.4-2
Operating system: Debian
Description: Bug in aritmethic calculations
Details:
postgres=# SELECT abs(300 - 200)/200*100 as bad, abs(300-200)*100/200 as
good;
bad | good
-----+------
0 | 50
(1 row)