Re: 21 bit number for sequence

From: Martijn van Oosterhout <kleptog(at)svana(dot)org>
To: Shoaib Mir <shoaibmir(at)gmail(dot)com>
Cc: PostgreSQL General <pgsql-general(at)postgresql(dot)org>
Subject: Re: 21 bit number for sequence
Date: 2006-04-15 07:49:57
Message-ID: 20060415074957.GB22736@svana.org
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On Sat, Apr 15, 2006 at 10:24:59AM +0500, Shoaib Mir wrote:
> Right now Sequence by default uses bigint which supports upto 19bit numbers
> but I want to use a 21bit that can be supported by NUMERIC datatype. Is
> there any way I can sepcify while creating a sequence what datatype to use
> or if I can specify to create sequence with numeric datatype?

What do you mean by 19bit? Normal ints support upto 31 bits and bigints
upto 2^63 positive numbers.

Maybe you mean 19 *digit* numbers, which is about what a bigint can do.
Well, that's more numbers than you're ever likely to generate so that
question become: why do you need a sequence with that kind of range?

Have a nice day,
--
Martijn van Oosterhout <kleptog(at)svana(dot)org> http://svana.org/kleptog/
> Patent. n. Genius is 5% inspiration and 95% perspiration. A patent is a
> tool for doing 5% of the work and then sitting around waiting for someone
> else to do the other 95% so you can sue them.

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