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

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Oleg Bartunov wrote:
> On Tue, 8 Feb 2005, Larry Rosenman wrote:
> 
>> Oleg Bartunov wrote:
>>> On Tue, 8 Feb 2005, Larry Rosenman wrote:
>>> 
>>>> 
>>>> It doesn't seem to like pieces with hyphens ('-') in the name, when
>>>> I try To update blacklist set new_domain_lt=text2ltree(domain) I
>>>> get a Syntax error (apparently for the hyphens).
>>>> 
>>> 
>>> Try change definition of ISALNUM on ltree.h
>>> 
>>> #define ISALNUM(x)      ( isalnum((unsigned char)(x)) || (x) == '_'
>>> ) 
>>> 
>>> this was already discussed
>>> http://www.pgsql.ru/db/mw/msg.html?mid=2034299
>>> 
>> Thanks!
>> 
>> Now, how can I make it always case-insensitive?
>> 
> 
> from http://www.sai.msu.su/~megera/postgres/gist/ltree/
> 
>   It is possible to use several modifiers at the end of a label:
> 
> 
>             @     Do case-insensitive label matching
>             *     Do prefix matching for a label
>             %     Don't account word separator '_' in label matching,
>                   that is 'Russian%' would match 'Russian_nations',
> but not 'Russian' 
> 
> 
> 
>> 
>> 
>> 
> 
>  	Regards,
>  		Oleg
> _____________________________________________________________
> Oleg Bartunov, sci.researcher, hostmaster of AstroNet, Sternberg
> Astronomical Institute, Moscow University (Russia) Internet:
> oleg@xxxxxxxxxx, http://www.sai.msu.su/~megera/ 
> phone: +007(095)939-16-83, +007(095)939-23-83

Does that apply to each node, or the entire string?  

I'd like to not have to parse the lquery string and make each node following
it with an @.

LER


-- 
Larry Rosenman                     http://www.lerctr.org/~ler
Phone: +1 972-414-9812                 E-Mail: ler@xxxxxxxxxx
US Mail: 1905 Steamboat Springs Drive, Garland, TX 75044-6749



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