am Sun, dem 19.11.2006, um 21:05:24 -0800 mailte Yadnyesh Joshi folgendes:
> According to the documentation, when "avg" or "stddev" function is used with
> integer arguments, the result is an integer. How can I obtain floating point
Thats not true:
test=> create table ints (i int);
CREATE TABLE
test=*> insert into ints values (2);
INSERT 0 1
test=*> insert into ints values (3);
INSERT 0 1
test=*> select avg(i) from ints;
avg
--------------------
2.5000000000000000
(1 row)
test=*> select stddev(i) from ints;
stddev
------------------------
0.70710678118654752440
(1 row)
Andreas
--
Andreas Kretschmer
Kontakt: Heynitz: 035242/47215, D1: 0160/7141639 (mehr: -> Header)
GnuPG-ID: 0x3FFF606C, privat 0x7F4584DA http://wwwkeys.de.pgp.net