Re: estimating # of distinct values
| От | Tomas Vondra |
|---|---|
| Тема | Re: estimating # of distinct values |
| Дата | |
| Msg-id | 4D279513.8050506@fuzzy.cz обсуждение исходный текст |
| Ответ на | Re: estimating # of distinct values (Jim Nasby <jim@nasby.net>) |
| Ответы |
Re: estimating # of distinct values
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| Список | pgsql-hackers |
Dne 7.1.2011 20:56, Jim Nasby napsal(a): > On Jan 7, 2011, at 5:32 AM, tv@fuzzy.cz wrote: >> Another thing I'm not sure about is where to store those intermediate >> stats (used to get the current estimate, updated incrementally). I was >> thinking about pg_stats but I'm not sure it's the right place - depending >> on the algorithm, this may be a fet kilobytes up to several megabytes. And >> it's not needed except when updating it. Any ideas? > > If you're using it essentially as a queue, maybe a resource fork makes sense? A resource fork? Not sure what you mean, could you describe it in more detail? regards Tomas
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