Re: float8 strtod weirdness
От | David Fetter |
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Тема | Re: float8 strtod weirdness |
Дата | |
Msg-id | 20090107145744.GC1475@fetter.org обсуждение исходный текст |
Ответ на | float8 strtod weirdness ("Nikhil Sontakke" <nikhil.sontakke@enterprisedb.com>) |
Список | pgsql-hackers |
On Wed, Jan 07, 2009 at 08:12:44PM +0530, Nikhil Sontakke wrote: > Hi, > > Consider the following with latest CVS sources: > > postgres=# create table temp(val float4); > CREATE TABLE > postgres=# insert into temp values (415.1); > INSERT 0 1 > postgres=# select * from temp where val = 415.1; > val > ----- > (0 rows) > > !? No "!?" at all. The "=" operation on floats has never been one to count on. If you need "=" not to give "surprising" results, you need to use some other data type such as numeric. Cheers, David. -- David Fetter <david@fetter.org> http://fetter.org/ Phone: +1 415 235 3778 AIM: dfetter666 Yahoo!: dfetter Skype: davidfetter XMPP: david.fetter@gmail.com Remember to vote! Consider donating to Postgres: http://www.postgresql.org/about/donate
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