Re: First implementation of GIN for pg_trgm
| От | Teodor Sigaev |
|---|---|
| Тема | Re: First implementation of GIN for pg_trgm |
| Дата | |
| Msg-id | 45DDB00D.1040402@sigaev.ru обсуждение исходный текст |
| Ответ на | Re: First implementation of GIN for pg_trgm ("Guillaume Smet" <guillaume.smet@gmail.com>) |
| Ответы |
Re: First implementation of GIN for pg_trgm
|
| Список | pgsql-patches |
> I didn't see any improvement in terms of size of the index (14 MB for
> 642 738 rows in the index in both cases) or speed.
> Our dictionary table contains 78367 words and its size is 3 MB.
>
> Did I miss something?
Comparing integers is cheaper than strings. Although it hasn't significant
matter for index scan.
> The attached patch adds a RECHECK too. It seems to work correctly but
> the RECHECK COND costs a lot of time :/.
:(
How long is average length of strings in table?
--
Teodor Sigaev E-mail: teodor@sigaev.ru
WWW: http://www.sigaev.ru/
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