Re: Accessing schema data in information schema
От | Jim C. Nasby |
---|---|
Тема | Re: Accessing schema data in information schema |
Дата | |
Msg-id | 20060323163157.GQ67996@pervasive.com обсуждение исходный текст |
Ответ на | Re: Accessing schema data in information schema (Hannu Krosing <hannu@skype.net>) |
Список | pgsql-hackers |
On Thu, Mar 23, 2006 at 12:10:54AM +0200, Hannu Krosing wrote: > ??hel kenal p??eval, K, 2006-03-22 kell 16:11, kirjutas Tom Lane: > > Peter Eisentraut <peter_e@gmx.net> writes: > > > How does one get at the missing fields. The only way I know is > > > selecting from the sequence, but how does one work this into this > > > query? Somehow it seems that these things should be stored in a real > > > system catalog. > > > > Yeah. I've occasionally toyed with the idea that sequences should be > > rows in a single catalog instead of independent tables as they are now. > > This would make for a much smaller disk footprint (with consequent I/O > > savings) and would solve problems like the one you have. > > Would it not make page locking problems much worse with all get_next()'s > competeing to update the same page? What about bumping up the default cache setting a bit? Even going to a fairly conservative value, like 10 or 25 would probably make a huge difference. -- Jim C. Nasby, Sr. Engineering Consultant jnasby@pervasive.com Pervasive Software http://pervasive.com work: 512-231-6117 vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461
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