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Re: Major features for 9.1

From: Florian Weimer <fweimer(at)bfk(dot)de>
To: "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov>
Cc: "Josh Berkus" <josh(at)agliodbs(dot)com>, "PostgreSQL Advocacy" <pgsql-advocacy(at)postgresql(dot)org>
Subject: Re: Major features for 9.1
Date: 2011-04-03 15:24:01
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Lists: pgsql-advocacy
* Kevin Grittner:

>> * SSI: Serializable Snapshot Isolation
>> True serializability without locking.  Eliminate a lot of SELECT
>> FOR UPDATE code.
>> This might also be a PostgreSQL first.
> Obviously *I* think it's big.  Besides the on-list posts, I've
> gotten quite a few off-list emails and comments at conferences which
> make me think there are a lot of others interested.  Notice the
> aggressive testing it got once it hit alpha.  I'm pretty sure I'd
> have heard about it or run across it in web searches if anybody else
> had beat us to this.  (I would say that "without blocking" would be
> more technically accurate than "without locking".)
> +1

Does SSI address the UPSERT race?  If yes, it's going to help a lot of
people indeed.

Florian Weimer                <fweimer(at)bfk(dot)de>
BFK edv-consulting GmbH
Kriegsstraße 100              tel: +49-721-96201-1
D-76133 Karlsruhe             fax: +49-721-96201-99

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