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Re: Insert failure on serial

From: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
To: Warren Seltzer <warrens(at)actcom(dot)net(dot)il>
Cc: pgsql-bugs(at)postgresql(dot)org
Subject: Re: Insert failure on serial
Date: 2006-05-05 15:07:47
Message-ID: 20060505150747.GB10554@surnet.cl (view raw or flat)
Thread:
Lists: pgsql-bugs
Warren Seltzer wrote:
> PostgreSQL 8.1.3 on i686-pc-mingw32
> Windows XP SP2
>  
> Summary of Insert failure (There IS NO DUPLICATE KEY):
> depot_development=# INSERT INTO line_items ("order_id", "product_id", "quantity",
> "unit_price") VALUES(1, 2, 2, 989.99);
> ERROR:  duplicate key violates unique constraint "line_items_pkey"

The problem is that the sequence attached to the "id" column is lower
than the values actually present in the column.  Try doing
SELECT setval(pg_get_serial_sequence('line_items', 'id'), 16);

and see if it fixes your problem.

Now, how did the sequence got out of sync?  Did you insert values to the
id column by hand?

-- 
Alvaro Herrera                                http://www.CommandPrompt.com/
The PostgreSQL Company - Command Prompt, Inc.

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