From: Michael Monnerie <michael.monnerie@is.it-management.at>
To: pgsql-admin@postgresql.org
Subject: DROP INDEX causes errors
Date: Wed, 17 Dec 2008 23:09:54 +0100
Message-ID: <200812172309.54457@zmi.at> (raw)
# select version();
version
-------------------------------------------------------------------------------------------------------------------
PostgreSQL 8.1.11 on x86_64-unknown-linux-gnu, compiled by GCC gcc
(GCC) 4.1.2 20061115 (prerelease) (SUSE Linux)
Today I dropped an index:
DROP INDEX dbmail_messageblks_physmessage_idx ;
The table is now:
# \d dbmail_messageblks
Tabelle »public.dbmail_messageblks«
Spalte | Typ | Attribute
-----------------+----------+------------------------------------------------------------------
messageblk_idnr | bigint | not null default
nextval('dbmail_messageblk_idnr_seq'::regclass)
physmessage_id | bigint |
messageblk | bytea | not null
blocksize | bigint | not null default (0)::bigint
is_header | smallint | not null default (0)::smallint
Indexe:
»dbmail_messageblks_pkey« PRIMARY KEY, btree (messageblk_idnr)
»dbmail_messageblks_physmessage_is_header_idx« btree
(physmessage_id, is_header) CLUSTER
Fremdschlüssel-Constraints:
»dbmail_messageblks_physmessage_id_fkey« FOREIGN KEY
(physmessage_id) REFERENCES dbmail_physmessage(id) ON UPDATE CASCADE ON
DELETE CASCADE
And immediately after the drop I got this:
DELETE:ERROR: could not open relation with OID 102021
DELETE:CONTEXT: SQL statement "DELETE FROM ONLY
"public"."dbmail_messageblks" WHERE "physmessage_id" = $1"
for each and every delete of a row in that table. After a
REINDEX TABLE dbmail_messageblks;
everything seems to work.
Is that a bug or did I do something bad?
mfg zmi
--
// Michael Monnerie, Ing.BSc ----- http://it-management.at
// Tel: 0660 / 415 65 31 .network.your.ideas.
// PGP Key: "curl -s http://zmi.at/zmi.asc | gpg --import"
// Fingerprint: AC19 F9D5 36ED CD8A EF38 500E CE14 91F7 1C12 09B4
// Keyserver: wwwkeys.eu.pgp.net Key-ID: 1C1209B4
Attachments:
signature.asc (application/pgp-signature, 196B) download
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-admin@postgresql.org
Cc: michael.monnerie@is.it-management.at
Subject: Re: DROP INDEX causes errors
In-Reply-To: <200812172309.54457@zmi.at>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox