Re: Synchronized scans - Mailing list pgsql-patches

From Heikki Linnakangas
Subject Re: Synchronized scans
Date
Msg-id 46647555.8070502@enterprisedb.com
Whole thread Raw
In response to Re: Synchronized scans  (Jeff Davis <pgsql@j-davis.com>)
List pgsql-patches
Jeff Davis wrote:
> No surprise here, as you and Bruce have already pointed out.
>
> If we wanted to reduce the occurrence of this phenomena, we could
> perhaps "time out" the hints so that it's impossible to pick up a hint
> from a scan that finished 5 minutes ago.
>
> It doesn't seem helpful to further obscure the non-determinism of the
> results, however.

I agree it's probably not a good idea to try masking this. It'll just
make it harder to hit the issue in testing, so that you run into it in
production.

--
   Heikki Linnakangas
   EnterpriseDB   http://www.enterprisedb.com

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