Tom Lane wrote:
> Gregory Stark <stark@enterprisedb.com> writes:
>> We previously discussed compressing the numeric data type for small values:
>> http://archives.postgresql.org/pgsql-hackers/2007-06/msg00715.php
>
>> We didn't do this for 8.3 but in any case Tom did suggest we ought to reverse
>> the weight and sign/dscale so we could do this sometime without introducing
>> another incompatibility.
>
> I had forgotten about that, but it does seem like a good idea to do it now.
> Any objections?
For in-place upgrade purpose It would be good change also OID for
numeric type and preserve current OID for current implementation on
updated system.
Zdenek
