| From: | hubert depesz lubaczewski <depesz(at)depesz(dot)com> |
|---|---|
| To: | Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com> |
| Cc: | Chris Browne <cbbrowne(at)acm(dot)org>, pgsql-general(at)postgresql(dot)org |
| Subject: | Re: LIKE and REGEX optimization |
| Date: | 2008-01-17 12:10:18 |
| Message-ID: | 20080117121018.GA30338@depesz.com |
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| Thread: | |
| Lists: | pgsql-general |
On Tue, Jan 15, 2008 at 04:49:41PM -0600, Scott Marlowe wrote:
> This query is not capable of using an index on name, since you can't
> use an index with a like beginning with a %... So
actually you can. you just can't use index for like %something%, but it
can be solved using trigrams or another approaches. for example:
http://www.depesz.com/index.php/2007/09/15/speeding-up-like-xxx/
depesz
--
quicksil1er: "postgres is excellent, but like any DB it requires a
highly paid DBA. here's my CV!" :)
http://www.depesz.com/ - blog dla ciebie (i moje CV)
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