Re: Reuse serial numbers?
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Тема | Re: Reuse serial numbers? |
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Msg-id | dbbf25900803270317g7e87b015lbf1f228fdb533715@mail.gmail.com обсуждение исходный текст |
Ответ на | Re: Reuse serial numbers? (nobs@nobswolf.info (Emil Obermayr)) |
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Re: Reuse serial numbers?
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Список | pgsql-novice |
Oh, I just thought of having a boolean field for indicating usage...I don't know if it will be more efficient. But as a novice... I think that will be sufficient. 2008/3/27, Emil Obermayr <nobs@nobswolf.info>: > On Thu, Mar 27, 2008 at 10:49:06AM +0100, A. Kretschmer wrote: > > > > Why do you think you need the numbers? > > > A typical application for low numbers (not letting them increase over > time) is the "human readabilitly" if you need them outside the DB as > labels on boxes for "real life transactions". > > One solution is writing a function using a self join on the column > on a.n + 1 = b.n searching for NULL results; then returning the a.n+1. > > I have this somewhere in the jungle of my source code snippets. Tell me > if you need me searching for it :) > > > Emil > > > > -- > Sent via pgsql-novice mailing list (pgsql-novice@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-novice >
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