Re: Questions about SERIAL type - Mailing list pgsql-hackers

From Ned Wolpert
Subject Re: Questions about SERIAL type
Date
Msg-id XFMail.20011128163750.ned.wolpert@knowledgenet.com
Whole thread Raw
In response to Re: Questions about SERIAL type  ("G. Anthony Reina" <reina@nsi.edu>)
List pgsql-hackers
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On 28-Nov-2001 G. Anthony Reina wrote:
> However, perhaps the other thing to do is to not increment the SERIAL value
> on an aborted transaction. I'm not sure why serial has to be incremented if
> the transaction fails. Of course, this won't take care of unused SERIAL
> numbers when DELETEs occur.

I thought its incremented since the sequence is outside of the transaction. 
That way, if multiple clients are doing inserts using the sequence, one
doesn't have to wait for the other transactions to end before they get a lock
on the sequence.


Virtually, 
Ned Wolpert <ned.wolpert@knowledgenet.com>

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