Re: default_text_search_config and expression indexes - Mailing list pgsql-hackers

From Mike Rylander
Subject Re: default_text_search_config and expression indexes
Date
Msg-id b918cf3d0708141432w456a3658se54c2798b6f578dd@mail.gmail.com
Whole thread Raw
In response to Re: default_text_search_config and expression indexes  (Alvaro Herrera <alvherre@commandprompt.com>)
List pgsql-hackers
On 8/14/07, Alvaro Herrera <alvherre@commandprompt.com> wrote:
> Oleg Bartunov wrote:
> > On Tue, 14 Aug 2007, Alvaro Herrera wrote:
> >
> >> Oleg Bartunov wrote:
> >>> On Thu, 9 Aug 2007, tomas@tuxteam.de wrote:
> >>>
> >>>> Maybe I'm missing something, but it seems to me that the configuration
> >>>> is more attached to a column/index thatn to the whole database. If
> >>>> there's a default in an expression, I'd rather expect this default to be
> >>>> drawn from the index involved than from a global value (like a
> >>>> functional
> >>>> index does now).
> >>>
> >>> I'm tired to repeat - index itself doesn't know about configuration !
> >>
> >> Is there a way to change that?  For example store the configuration in a
> >> metapage or something?
> >
> > it's useless, in general, since you could use different configuration to
> > build tsvector.
>
> Hmm, sorry, I think I just understood what this was about: so you mean
> that the configuration is really *per row* and not per index?  So I can
> store rows into an index using more than one configuration, and it will
> work?

Can and does, to great success.  :)

--miker


pgsql-hackers by date:

Previous
From: Decibel!
Date:
Subject: Re: Index Tuple Compression Approach?
Next
From: Tom Lane
Date:
Subject: Re: tsearch2 in PostgreSQL 8.3?