Re: [PGSQL 8.2.x] INSERT+INSERT

From: Gregory Stark <stark(at)enterprisedb(dot)com>
To: "Vincenzo Romano" <vincenzo(dot)romano(at)gmail(dot)com>
Cc: <pgsql-general(at)postgresql(dot)org>
Subject: Re: [PGSQL 8.2.x] INSERT+INSERT
Date: 2007-06-22 15:43:38
Message-ID: 871wg4nget.fsf@oxford.xeocode.com
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"Vincenzo Romano" <vincenzo(dot)romano(at)gmail(dot)com> writes:

>> Or wrap it around SQL function:
>
> That's the way I'm doind now even if in a slightly different way.
> 20+ million calls will badly slooow down the DB insertions

Are you sure? How much?

> and require you to know the exact name of the implicit sequence

If you're sure you only have a single sequence being bumped here (no triggers
inserting somewhere else, or other columns with sequences for default values,
etc) then you could use lastval().

> and, more important, not to have any concurrent accesses to it.

huh? no, sequences don't require this. They would be pointless if they did.

--
Gregory Stark
EnterpriseDB http://www.enterprisedb.com

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