From: | Noah Misch <noah(at)leadboat(dot)com> |
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To: | Alvaro Herrera <alvherre(at)commandprompt(dot)com> |
Cc: | Andrew Dunstan <andrew(at)dunslane(dot)net>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: isolation check takes a long time |
Date: | 2012-07-27 00:12:48 |
Message-ID: | 20120727001248.GA31830@tornado.leadboat.com |
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Lists: | pgsql-hackers |
On Thu, Jul 26, 2012 at 12:16:29PM -0400, Alvaro Herrera wrote:
> Excerpts from Noah Misch's message of jue jul 26 06:28:54 -0400 2012:
> > var "isolation" = { "rc" => "READ COMMITTED", "rr" => "REPEATABLE READ" }
>
> Agreed. What would be the syntax to specify a particular value to use
> in a permutation? Maybe
>
> permutation isolation=rr "step1" "step2" ...
I figured just 'permutation "rr" "step1" "step2"', in keeping with the
tendency toward terseness already found in the implementation. It would then
be an error to use a name more than once among specs and variable.
> I'm not sure about requiring quotes around those identifiers.
Let's keep it consistent with the requirement in other contexts of the spec
file. I generally favor a policy of optional quotes, but that could be its
own patch.
Thanks,
nm
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