Carol Walter <walterc(at)indiana(dot)edu> writes:
> How do I install the tsearch module in 8.4? I have found
> documentation on it's use, but it all seems to start with "After you
> install the tsearch module..." It doesn't say how that is done.
Any documentation that says that is presumably written for 8.2 or
before. Ignore it and see the 8.3 manual:
http://www.postgresql.org/docs/8.3/static/textsearch.html
If your problem is really about upgrading an 8.2 or older tsearch
installation to 8.3, see in particular
http://www.postgresql.org/docs/8.3/static/textsearch-migration.html
regards, tom lane