| From: | Zdenek Kotala <Zdenek(dot)Kotala(at)Sun(dot)COM> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Gregory Stark <stark(at)enterprisedb(dot)com>, PostgreSQL-development Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Reducing NUMERIC size for 8.3 |
| Date: | 2007-09-25 15:28:24 |
| Message-ID: | 46F92918.9020201@sun.com |
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| Lists: | pgsql-hackers |
Tom Lane wrote:
> Gregory Stark <stark(at)enterprisedb(dot)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
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