Re: float value is rounded
От | David Fetter |
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Тема | Re: float value is rounded |
Дата | |
Msg-id | 20091126003204.GA13542@fetter.org обсуждение исходный текст |
Ответ на | Re: float value is rounded (Pavel Stehule <pavel.stehule@gmail.com>) |
Список | pgsql-hackers |
On Wed, Nov 25, 2009 at 07:46:11PM +0100, Pavel Stehule wrote: > 2009/11/25 Tom Lane <tgl@sss.pgh.pa.us>: > > Pavel Stehule <pavel.stehule@gmail.com> writes: > >> I was surprised with rounding relative not big value. Is it > >> correct? > > > > You do realize float4 has only 6 decimal digits of precision? > > > > To today I though so float4 is more practical :). Floats have never been safe with respect to operations like =, and won't become so. 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 iCal: webcal://www.tripit.com/feed/ical/people/david74/tripit.ics Remember to vote! Consider donating to Postgres: http://www.postgresql.org/about/donate
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