In 8.3, tsearch2 was included in core. However, functions and procedures changed. So, a contrib module was included in order to translate old tsearch2 calls to new tsearch2.
So, uninstalling tsearch2 in 8.2 will make your search not work.
You will have also to deal with a change in data typing. Before 8.3, data typing checks where very lazy. After 8.3, these checks are hard.
So, you will have to rewrite SQL sentences like this:
SELECT * from table where integer='1' -> SELECT * from table where integer=1 or SELECT * from table where integer='1'::integer
so types match.
Migrating from 8.2 to 8.3 and higher versions can be a hard task if you have to check lot of SQL code.
-----Original Message-----
From: Adib <amslist@xxxxxxxxx>
To: Devrim GÜNDÜZ <devrim@xxxxxxxxxx>
Cc: pgsql-admin@xxxxxxxxxxxxxx
Subject: Re: Problems Upgrading from 8.2 to 9.0
Date: Wed, 22 Dec 2010 00:01:14 -0800
I solved my problems by using the uninstall scripts located in the share/contrib in 8.2 to get rid of tsearch2 and fuzzymatch and that eliminated a lot of the errors I was running into.
2010/12/21 Adib <amslist@xxxxxxxxx>
Is there some way to avoid restoring tsearch2 since full text searching is now part of postgres 9.0, the apps that use the database don't do any full text searching.
2010/12/21 Devrim GÜNDÜZ <devrim@xxxxxxxxxx>
On Tue, 2010-12-21 at 22:39 -0800, Adib wrote:
> ERROR: type "tsvector" is only a shell
> ERROR: operator class "gin_tsvector_ops" does not exist for access
> method
> "gin
*IIRC*, you need to load contrib/tsearch2.sql to database *before*
restoring your backup.
Regards,
--
Devrim GÜNDÜZ
PostgreSQL Danışmanı/Consultant, Red Hat Certified Engineer
PostgreSQL RPM Repository: http://yum.pgrpms.org
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