Re: Select count(*), the sequel
От | Robert Haas |
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Тема | Re: Select count(*), the sequel |
Дата | |
Msg-id | AANLkTinLtyA3F8v-9nQKQW51LMOG+j7k_WEowPnQOPto@mail.gmail.com обсуждение исходный текст |
Ответ на | Re: Select count(*), the sequel (Tom Lane <tgl@sss.pgh.pa.us>) |
Список | pgsql-performance |
On Tue, Oct 26, 2010 at 6:51 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote: > Robert Haas <robertmhaas@gmail.com> writes: >> I don't think this is due to fillfactor - the default fillfactor is >> 100, and anyway we ARE larger on disk than Oracle. We really need to >> do something about that, in the changes to NUMERIC in 9.1 are a step >> in that direction, but I think a lot more work is needed. > > Of course, the chances of doing anything more than extremely-marginal > kluges without breaking on-disk compatibility are pretty tiny. Given > where we are at the moment, I see no appetite for forced dump-and-reloads > for several years to come. So I don't foresee that anything is likely > to come of such efforts in the near future. Even if somebody had a > great idea that would make things smaller without any other penalty, > which I'm not sure I believe either. Let's try not to prejudge the outcome without doing the research. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company
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