duplicate key violates unique constraint. (repost)

From: Michael Guerin <guerin(at)rentec(dot)com>
To: pgsql-novice(at)postgresql(dot)org
Subject: duplicate key violates unique constraint. (repost)
Date: 2005-07-20 16:10:09
Message-ID: 42DE7761.2060807@rentec.com
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Hi,

Sorry for the lack of info, but I wanted to get a post out there
while I start to figure out my problem since this is a production database.

We're starting to get a number of complaints about "duplicate key
violations" on a index for one of the toast tables. It started
happening after our server was brought down over the weekend, so I
suspect postgresql wasn't shutdown properly. Below is the description
of the index.

I'm doing a re-index on the user table that is associated with the toast
table, is this the right thing to do? Is there something else I should do?

# \d pg_toast.pg_toast_1916266943_index
Index "pg_toast.pg_toast_1916266943_index"
Column | Type
-----------+---------
chunk_id | oid
chunk_seq | integer
primary key, btree, for table "pg_toast.pg_toast_1916266943"

# select version();
version
------------------------------------------------------------------------
PostgreSQL 8.0.2 on i686-pc-linux-gnu, compiled by GCC gcc (GCC) 3.4.2

Thanks
michael

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