Re: Duplicate Key Violates Unique Contraint whenUpdating a table

Started by carter ckalmost 19 years ago2 messagesgeneral
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#1carter ck
carterck32@hotmail.com

Hi..

No. The only unique key is the myid, which is also the primary key. I have
extracted the records out from this database and dump all to a new database.
Everything is fine. But, this is the second time I have encountered this
problem.

Hopefully those who have solutions for this can kindly post a feedback.
THanks.

From: Ragnar <gnari@hive.is>
To: carter ck <carterck32@hotmail.com>
CC: pgsql-general@postgresql.org
Subject: Re: [GENERAL] Duplicate Key Violates Unique Contraint whenUpdating
a table
Date: Sun, 24 Jun 2007 10:05:16 +0000

On sun, 2007-06-24 at 16:55 +0800, carter ck wrote:

I am experiencing thgis problem since this morning. I seldom heard about
unique key constraint violation to happen when updating a table.

It happens to 1 or few records at early stage, but then to all.

My updating command is as following:

update mytable set my_status='Y' where myid='ABC123567778';

Can anyone help? All helps and solutions are appreciated.

sounds like you have a UNIQUE constraint involving the column
"my_status".

did you recently create a new index on this table?

what does psql say to:
\d mytable

gnari

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#2Ragnar
gnari@hive.is
In reply to: carter ck (#1)
Re: Duplicate Key Violates Unique Contraint whenUpdating a table

On sun, 2007-06-24 at 17:58 +0800, carter ck wrote:

From: Ragnar <gnari@hive.is>
On sun, 2007-06-24 at 16:55 +0800, carter ck wrote:

I am experiencing thgis problem since this morning. I seldom heard about
unique key constraint violation to happen when updating a table.

It happens to 1 or few records at early stage, but then to all.

My updating command is as following:

update mytable set my_status='Y' where myid='ABC123567778';

Can anyone help? All helps and solutions are appreciated.

sounds like you have a UNIQUE constraint involving the column
"my_status".

did you recently create a new index on this table?

what does psql say to:
\d mytable

No. The only unique key is the myid, which is also the primary key. I have
extracted the records out from this database and dump all to a new database.
Everything is fine. But, this is the second time I have encountered this
problem.

do you still have the old database around?
if you do, does a
REINDEX mytable;
make your problem go away?

gnari