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vacuum and serial primary keys - Mailing list pgsql-sql

From Carmen Marincu
Subject vacuum and serial primary keys
Date
Msg-id Pine.GSO.4.40.0302011244410.20287-100000@khumbu
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In response to update and IN vs. EXISTS  (pginfo <pginfo@t1.unisoftbg.com>)
Responses Re: vacuum and serial primary keys
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Hello -

I am using Postgresql 7.1.3 and I have deleted 3000 rows from a table
(with DELETE).
Than I used vacuum <mytable> to actually delete the rows markes as deleted
by the DELETE command..
The trouble is that the "counter" for the serial primary key (ID field)
wasn't reset. So now althought I have only 2 rows in my table they have
the ID 3001 and 3002.

Is this normal ? If not could someone please explain me how could  I reset
the "counter" to ignore the deleted rows ?

Thank you very much
Carmen

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