Nope, there's not a native data type which is unsigned.
You could use the OID datatype, but that would be inelegant
and not very portable.
You could also use the NUMERIC data type and just use the
minimal number of points of precision, but that would
be inelegant and slower.
You can use a character field CHAR(x) with the number
of digits you want.
You can always go up to he next biggest INTEGER type.
(Numbers larger than 32,768? Go to INT4. Larger than 2 billion?
Go to INT 8. Larger than 4 x 10 ^ 18? Uh...(what are you
You could also just change your supporting to code to automatically
subtract the smallest negative number so that you effectively
get only positives.
[mailto:pgsql-novice-owner(at)postgresql(dot)org]On Behalf Of Carfield Yim
Sent: Wednesday, July 18, 2001 12:48 PM
Subject: [NOVICE] Is there unsigned datatype in PostgreSQL?
Is there unsigned datatype like unsigned int?
Carfield Yim, visit my homepage at http://www.carfield.com.hk
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