From: | pgsql-bugs(at)postgresql(dot)org |
---|---|
To: | pgsql-bugs(at)postgresql(dot)org |
Subject: | select avg() and sum() returns false value |
Date: | 2001-05-18 22:03:42 |
Message-ID: | 200105182203.f4IM3gC77946@hub.org |
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Lists: | pgsql-bugs |
Christoph Lorenz (Christoph_Lorenz(at)gmx(dot)de) reports a bug with a severity of 2
The lower the number the more severe it is.
Short Description
select avg() and sum() returns false value
Long Description
I don't know, if it's my fault, but when I sum up several thousands
of positive entries in a column (the column is an int2 field), I get a negative(!) value.
Sample Code
CREATE TABLE recording (
[...]
time int2 DEFAULT NULL,
[...]
);
select time from recording returns only positive values, like time
------
277
159
192
183
184
178
180
207
243
194
203
182
277
159
192
183
184
178
180
207
243
194
203
182
229
229
and when I sum it up, the following happens (remember, there are really no negative values in my database):
mmusic2=# select sum(time) from recording;
sum
--------
-12491
(1 row)
No file was uploaded with this report
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