If you look into documentation, the behavior of float/double is platform depend.
If you want to same result on any platform, use numeric instead.
Zdenek
Richard Wang napsal(a):
I run the following sql statements in linux and get the results:
postgres=# create table test_double(col1 float8);
CREATE TABLE
postgres=# insert into test_double values(1.7976931348623159E308);
INSERT 0 1
postgres=# select * from test_double;
col1
----------
Infinity
(1 row)
but in windows:
postgres=# create table test_double(col1 float8);
CREATE TABLE
postgres=# insert into test_double values(1.7976931348623159E308);
ERROR:
"17976931348623159000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000000000000000000000"
is out of range for type double precision
postgres=# select * from test_double;
col1
------
(0 rows)
This is a bug, the behavior in windows and linux is not the smae
I check the code and find that float8in exists a bug:
the strtod() function in linux dosen't set errno when dealing with
1.7976931348623159E308 but in windows it does
How should we improve it?
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