From: Achilleas Mantzios <achill@matrix.gatewaynet.com>
Organization: Dynacom Tankers Mgmt
To: gnanam@zoniac.com, pgsql-admin@postgresql.org
Subject: Re: How to find and/or REINDEX only GiST indexes in the database?
Date: Wed, 12 Oct 2011 17:07:05 +0300
User-Agent: KMail/1.9.7
References: <008201cc88dd$0208c1a0$061a44e0$@com>
In-Reply-To: <008201cc88dd$0208c1a0$061a44e0$@com>
MIME-Version: 1.0
Content-Type: text/plain;
  charset="utf-8"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline
Message-Id: <201110121707.05850.achill@matrix.gatewaynet.com>

=CE=A3=CF=84=CE=B9=CF=82 Wednesday 12 October 2011 15:46:45 =CE=BF/=CE=B7 G=
nanakumar =CE=AD=CE=B3=CF=81=CE=B1=CF=88=CE=B5:
> Hi,
>=20
> We're planning to upgrade our Production server from PostgreSQL v8.2.3 to
> the latest version in 8.2 series, that is v8.2.22. =20
>=20
> In 8.2.11 Release Notes here
> http://www.postgresql.org/docs/current/interactive/release-8-2-11.html, i=
t's
> been mentioned that:
> "Also, if you were running a previous 8.2.X release, it is recommended to
> REINDEX all GiST indexes after the upgrade."
>=20
> My question is, how do I find out or REINDEX *only* GiST indexes in the
> database?  Is there a single syntax/command that does this?

I guess not, one way is to take an ascii schema-only dump and parse it,
looking for GIST indexes.

Anotherway is to look in those tables:
SELECT oid,* from pg_opclass ; -- to find the GIST class
SELECT c.relname,indclass from pg_catalog.pg_index i,pg_catalog.pg_class c =
where indexrelid=3Dc.oid;
^^ to find those indexes which have this gist class oid in the indclass fie=
ld.

Note tho, that indclass is oidvector, and i dont know how you could iterate=
 on those (by SQL),=20
without writing a C (or other) program.

>=20
> Regards,
> Gnanam
>=20
>=20
>=20


=2D-=20
Achilleas Mantzios