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help / color / mirror / Atom feedFrom: Bruce Momjian <[email protected]>
To: David G. Johnston <[email protected]>
Cc: Kevin Grittner <[email protected]>
Cc: Peter Eisentraut <[email protected]>
Cc: [email protected] <[email protected]>
Subject: Re: Add a new table for Transaction Isolation?
Date: Tue, 28 Apr 2015 18:26:03 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <CAKFQuwaWqLbUvgq81JKKVtbrNQJBPhS2q6XUpj+EDZcd5bc3wA@mail.gmail.com>
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On Sat, Apr 25, 2015 at 02:14:37PM -0700, David G. Johnston wrote:
> On Saturday, April 25, 2015, Bruce Momjian <[email protected]> wrote:
>
> On Sat, Apr 25, 2015 at 08:47:47PM +0000, Kevin Grittner wrote:
> > Maybe something like "Prohibited", "Allowed but not Possible", and
> > "Possible"? That would take a little explaining above, since our
> > documentation's table would be deviating from the standard's table
> > in its word choice.
>
> I can't even process that.
>
>
>
> After writing my thoughts this makes sense now. Prohibited means that both
> tables would say not possible. Possible means both tables would say possible.
> Allowed but not possible means our implementation says not possible and the
> standard says it is possible. The fourth possibility, not allowed but
> possible, would mean we are not standard conforming and since we are it never
> appears.
>
> I would probably choose "not possible (contra-SQL)" and emphasize our
> implementation and footnote the two differences.
I went with "Allowed, but not in PG" for those two fields, and removed
the extra rows I had added. You can see the output here:
http://momjian.us/expire/transaction-iso.html
--
Bruce Momjian <[email protected]> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ Everyone has their own god. +
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