From: | "Piergiorgio Buongiovanni" <p(dot)buongiovanni(at)net-international(dot)com> |
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To: | pgsql-bugs(at)postgresql(dot)org |
Subject: | BUG #5476: sequence corruption |
Date: | 2010-05-27 09:10:20 |
Message-ID: | 201005270910.o4R9AKDd038676@wwwmaster.postgresql.org |
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Lists: | pgsql-bugs |
The following bug has been logged online:
Bug reference: 5476
Logged by: Piergiorgio Buongiovanni
Email address: p(dot)buongiovanni(at)net-international(dot)com
PostgreSQL version: 8.3.4
Operating system: CentOS (Redhat 5.4)
Description: sequence corruption
Details:
We experimented a sequence corruption on a table:
If we now look at the sequence data using pgAdmin version 1.8.4, we see the
following:
CREATE SEQUENCE business.subject_isid_seq
INCREMENT 1
MINVALUE 1
MAXVALUE 9223372036854775807
START 58827944
CACHE 1;
ALTER TABLE business.subject_isid_seq OWNER TO netdw_owner;
The problem is that now the search on the table business.Subject (where the
sequence is used) performs very slowly. It seems the data are corrupted but
at the end I can see that there is a record created with the number 463663
instead of 57. As you can see the next value will be used is 58827944.
Which is the problem? Can I recover this situation and restore the right
sequence value? I tried to set the START value to 58 but, as you can see,
the value changed.
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