Re: BUG #7600: Database crash with data corruption - Mailing list pgsql-bugs

From Craig Ringer
Subject Re: BUG #7600: Database crash with data corruption
Date
Msg-id 50794C3E.3070608@ringerc.id.au
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In response to BUG #7600: Database crash with data corruption  (hankiewicz@gmail.com)
Responses Re: BUG #7600: Database crash with data corruption  (Michał Hankiewicz <hankiewicz@gmail.com>)
List pgsql-bugs
On 10/12/2012 09:35 PM, hankiewicz@gmail.com wrote:
> 5) after recovery was completed we have discovered that sequences on
> production database had wrong values

To follow up on Tom's explanation, if you're relying on sequences not
having "holes" then your design is dangerously mistaken. A simple
ROLLBACK throws away any IDs that were obtained from sequences in that
transaction.

If you're saying that the sequence is wrong in that it's LOWER than IDs
present in the table, then that's a problem.

--
Craig Ringer

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