Re: Synchronized scans - Mailing list pgsql-patches

From Jeff Davis
Subject Re: Synchronized scans
Date
Msg-id 1181323462.7660.183.camel@dogma.v10.wvs
Whole thread Raw
In response to Re: Synchronized scans  (Heikki Linnakangas <heikki@enterprisedb.com>)
Responses Re: Synchronized scans  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-patches
On Fri, 2007-06-08 at 11:05 +0100, Heikki Linnakangas wrote:
> BTW: Should we do the synchronization in the non-page-at-a-time mode?
> It's not many lines of code to do so, but IIRC that codepath is only
> used for catalog access. System tables really shouldn't grow that big,
> and if they do we shouldn't be doing seq scans for them anyway. Does the
> unstable ordering confuse any catalog accesses?

http://archives.postgresql.org/pgsql-hackers/2006-09/msg01199.php

There is a very minor assumption there that scans on pg_class will
return in the same order. I'm not sure if that's even a problem.

Regards,
    Jeff Davis


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