Re: tsvector pg_stats seems quite a bit off.
| От | Jesper Krogh |
|---|---|
| Тема | Re: tsvector pg_stats seems quite a bit off. |
| Дата | |
| Msg-id | 4C03FC23.8000109@krogh.cc обсуждение исходный текст |
| Ответ на | Re: tsvector pg_stats seems quite a bit off. (Jan Urbański <wulczer@wulczer.org>) |
| Ответы |
Re: tsvector pg_stats seems quite a bit off.
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| Список | pgsql-hackers |
On 2010-05-30 20:02, Jan Urbański wrote: > Here's a patch against recent git, but should apply to 8.4 sources as > well. It would be interesting to measure the memory and time needed to > analyse the table after applying it, because we will be now using a lot > bigger bucket size and I haven't done any performance impact testing on > it. I updated the initial comment block in compute_tsvector_stats, but > the prose could probably be improved. > Just a small follow up. I tried out the patch (or actually a fresh git checkout) and it now gives very accurate results for both upper and lower end of the MCE-histogram with a lower cutoff that doesn't approach 2. Thanks alot. -- Jesper
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