Re: Creating an index-type for LIKE '%value%'

On Tue, 8 Feb 2005, Larry Rosenman wrote:

> On Tue, 8 Feb 2005, Oleg Bartunov wrote:
>
>> On Mon, 7 Feb 2005, Larry Rosenman wrote:
>>
>>> Oleg Bartunov wrote:
>>
>> Larry, I pointed you to pg_trgm module mostly following Martijn's
>> suggestions. Now, I see you need another our module - ltree,
>> see http://www.sai.msu.su/~megera/postgres/gist/ltree/
>> for details.
>
> I maybe dense, but could you give me an example?

test=# \d tt
Table "public.tt"
Column | Type | Modifiers
--------+-------+-----------
domain | ltree |
Indexes:
"ltree_idx" gist ("domain")

test=# select * from tt where domain ~ '*.ru'::lquery;
domain
-------------
astronet.ru
mail.ru
pgsql.ru
(3 rows)

>
> I'm not seeing it for some reason :).
>
> Thanks,
> LER
>
>

Regards,
Oleg
_____________________________________________________________
Oleg Bartunov, sci.researcher, hostmaster of AstroNet,
Sternberg Astronomical Institute, Moscow University (Russia)
Internet: oleg(at)sai(dot)msu(dot)su, http://www.sai.msu.su/~megera/
phone: +007(095)939-16-83, +007(095)939-23-83