| From: | Martijn van Oosterhout <kleptog(at)svana(dot)org> |
|---|---|
| To: | Heikki Linnakangas <heikki(at)enterprisedb(dot)com> |
| Cc: | stark(at)enterprisedb(dot)com, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Fixed length data types issue |
| Date: | 2006-09-15 10:52:44 |
| Message-ID: | 20060915105244.GF1608@svana.org |
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| Lists: | pgsql-hackers |
On Fri, Sep 15, 2006 at 11:43:52AM +0100, Heikki Linnakangas wrote:
> My gut feeling is that it wouldn't be that bad compared to what we have
> now or the new proposed varlena scheme, but before someone actually
> tries it and shows some numbers, this is just hand-waving.
Well, that depends on whether you're going to make a special typlen
value for *just* UTF-8, which would probably cost about the same. Or
allow any type to have it's own Datum length function, which would be
very expensive. Calling user-defined functions is not cheap.
I don't think making a special typlen value just for a type that can
store a single UTF-8 character is smart. I just can't see enough use to
make it worth it.
Have a nice day,
--
Martijn van Oosterhout <kleptog(at)svana(dot)org> http://svana.org/kleptog/
> From each according to his ability. To each according to his ability to litigate.
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