Re: Text search

From: "Jan Ploski" <jpljpl@gmx.de>


> Hi,
>
> Thanks for all your remarks regarding 7.1's stability. I'm going to get
> it running as our mail/news database backend and come back with bug
> reports ;-)
>
> Another question which comes to my mind: what would be the best way to
> implement a search feature for such a database? I know that there are
> specialized tools such as glimpse for fast and fancy indexing of text
> content. Can anyone recommend a solution for PostgreSQL-databased messages
> or, as a matter of fact, for performing text search in big relational
> databases generally? I am curious how sites such as the former Deja.com
> approach this problem. Do they just rely on simple SELECTs with regular
> expressions in the WHERE clause or do they export messages into some
> external format and feed them to specialized indexing software for
> pre-processing?

There is the full-text-indexing in contrib/

Udmsearch has Postgres interfaces although I haven't really used it yet. It
does web/text and database searches.

I think it powers the postgresql.org website search, which might or might
not be a ringing endorsement.

- Richard Huxton