Re: Inserting and incrementing with MAX aggregate - Mailing list pgsql-general

From Ian Harding
Subject Re: Inserting and incrementing with MAX aggregate
Date
Msg-id 3A6E5373.BDF7674B@pakrat.com
Whole thread Raw
In response to Inserting and incrementing with MAX aggregate  (Keith Perry <keith@vcsn.com>)
List pgsql-general
Could you not:

insert into events (eid,name) values ((SELECT max(eid) FROM
EVENTS)+1,'server down');

It looks like it would work.  It's just a subquery...

Ian

Keith Perry wrote:

> I was wondering if this statement was still supported in 7.0.x versions
> of pgSQL.  I upgraded from a 6.x version where say:
>
> insert into events (eid,name) values (max(eid)+1,'server down');
>
> works but not in the 7.x variants.
>
> I know that I could use the serial type for that column but in the
> interest not having to rewrite the code (or dump, drop and recreate the
> tables/data), I wanted  to know if there was a more stand way to
> incrementing a field automatically that would be fairly portable.  Any
> help would be appreciated.
>
> Keith Perry
> VCSN Inc.
> keith@vcsn.com
> http://vcsn.com


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