From: | Bruce Momjian <bruce(at)momjian(dot)us> |
---|---|
To: | "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com> |
Cc: | Kevin Grittner <kgrittn(at)ymail(dot)com>, Peter Eisentraut <peter_e(at)gmx(dot)net>, "pgsql-docs(at)postgresql(dot)org" <pgsql-docs(at)postgresql(dot)org> |
Subject: | Re: Add a new table for Transaction Isolation? |
Date: | 2015-04-28 22:26:03 |
Message-ID: | 20150428222603.GD31727@momjian.us |
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Thread: | |
Lists: | pgsql-docs |
On Sat, Apr 25, 2015 at 02:14:37PM -0700, David G. Johnston wrote:
> On Saturday, April 25, 2015, Bruce Momjian <bruce(at)momjian(dot)us> 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 <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ Everyone has their own god. +
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