Re: CLUSTER and synchronized scans and pg_dump et al - Mailing list pgsql-hackers

From Guillaume Smet
Subject Re: CLUSTER and synchronized scans and pg_dump et al
Date
Msg-id 1d4e0c10801271009k79924bbbi18afb8583b71d421@mail.gmail.com
Whole thread Raw
In response to Re: CLUSTER and synchronized scans and pg_dump et al  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: CLUSTER and synchronized scans and pg_dump et al  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-hackers
On Jan 27, 2008 6:45 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Yeah, Rae Steining was complaining to me about that off-list a few weeks
> ago.  The whole syncscan behavior risks breaking many apps that "always
> worked before", even if they were disregarding the letter of the SQL spec.
>
> Maybe a GUC variable to enable/disable syncscan?

I'm not sure it's really a good reason for that because it's just a
matter of time for them to be broken anyway.

But it seems at least a good idea to have a way to build reproducible
test cases on production boxes without being perturbed by the other
scans running. Would it need a restart and be a global GUC variable or
could it be set temporarily per session?

--
Guillaume


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