Horton

Re: tsearch2 in PostgreSQL 8.3?

Bruce Momjian <bruce@momjian.us>

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From: Bruce Momjian <bruce@momjian.us>
To: "Joshua D. Drake" <jd@commandprompt.com>
Cc: Trevor Talbot <quension@gmail.com>, pgsql-hackers@postgresql.org, Mike Rylander <mrylander@gmail.com>, "tomas@tuxteam.de" <tomas@tuxteam.de>, Josh Berkus <josh@agliodbs.com>, Tom Lane <tgl@sss.pgh.pa.us>, Oleg Bartunov <oleg@sai.msu.su>
Date: 2007-08-18T19:48:23Z
Lists: pgsql-hackers 
Joshua D. Drake wrote:
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> Bruce Momjian wrote:
> > Trevor Talbot wrote:
> >> On 8/18/07, Bruce Momjian <bruce@momjian.us> wrote:
> >>
> >>> Remember an expression index can be a user-created function so you can
> >>> embed whatever you want in your function and just index it's output,
> >>> just like you would with a trigger creating a separate column.
> >> Well, you could create a function that returns a tsvector, but how do
> >> you get that to work with queries?  I've been under the impression the
> >> expressions need to match (in the normal case, be the same function
> >> with the same arguments) in order to use the index.
> > 
> > Yes, so you create a function called complex_ts and create the index:
> > 
> > 	CREATE INDEX ii on x USING GIT(complex_ts(col1, col2))
> 
> GIN?

Yes, sorry, GIN.

-- 
  Bruce Momjian  <bruce@momjian.us>          http://momjian.us
  EnterpriseDB                               http://www.enterprisedb.com

  + If your life is a hard drive, Christ can be your backup. +