Sequence skipping values

From: Jean-Christophe Roux <jcxxr(at)yahoo(dot)com>
To: pgsql-general(at)postgresql(dot)org
Subject: Sequence skipping values
Date: 2006-02-10 17:44:28
Message-ID: 20060210174428.37387.qmail@web35302.mail.mud.yahoo.com
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Hello,
I have a table with and id field (primary key) which default value is the result of a sequence (increment explicitly set to 1).
To my surprise, the real increment on insert is the total number of rows of the table. For instance, with 41 rows and a sequence last_value of 1141, the next insert row will have a value of 1182. It is not a big problem but I don't like skipping and wasting values in a sequence. Also, I'd like to understand what's going on!
If someone could give me a clue that wold be greatly appreciated
thanks
JC

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