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

From Oleg Bartunov
Subject Re: default_text_search_config and expression indexes
Date
Msg-id Pine.LNX.4.64.0708091358260.18739@sn.sai.msu.ru
Whole thread Raw
In response to Re: default_text_search_config and expression indexes  (tomas@tuxteam.de)
Responses Re: default_text_search_config and expression indexes  (tomas@tuxteam.de)
Re: default_text_search_config and expression indexes  (Alvaro Herrera <alvherre@commandprompt.com>)
List pgsql-hackers
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 !
It just index tsvector data type. tsvector in turn can be obtained
using various ways:
1. manually
2. to_tsvector

tsvector can be stored in a separate attribute or be fully virtual
like in expressional index.

Moreover, tsvector can be obtained using various configurations depending
on your application.

    Regards,        Oleg
_____________________________________________________________
Oleg Bartunov, Research Scientist, Head of AstroNet (www.astronet.ru),
Sternberg Astronomical Institute, Moscow University, Russia
Internet: oleg@sai.msu.su, http://www.sai.msu.su/~megera/
phone: +007(495)939-16-83, +007(495)939-23-83


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