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Re: auto-increment field : in a simple way

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On 10/11/2012 05:11 PM, Vineet Deodhar wrote:
On Thu, Oct 11, 2012 at 12:56 PM, Scott Marlowe <scott.marlowe@xxxxxxxxx
<mailto:scott.marlowe@xxxxxxxxx>> wrote:


    Can't you just add this to your create table:


    CREATE TABLE tablename (
        colname SERIAL
    , check (colname>0 and colname < 32768));
    );



With this constraint, whether the storage space requirement would reduce?
OR
Is it just for validation of data?

It's purely validation and has no effect on storage size.

--
Craig Ringer



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