| From: | Noah Misch <noah(at)leadboat(dot)com> |
|---|---|
| To: | Michael Meskes <meskes(at)postgresql(dot)org>, Boszormenyi Zoltan <zb(at)cybertec(dot)at>, Robert Haas <robertmhaas(at)gmail(dot)com>, PG Hackers <pgsql-hackers(at)postgresql(dot)org>, Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, Bruce Momjian <bruce(at)momjian(dot)us> |
| Subject: | Re: ECPG FETCH readahead |
| Date: | 2012-04-09 02:15:19 |
| Message-ID: | 20120409021519.GD11987@tornado.leadboat.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
On Sun, Apr 08, 2012 at 04:25:01PM +0200, Michael Meskes wrote:
> On Sat, Apr 07, 2012 at 11:50:42AM -0400, Noah Misch wrote:
> > I do call your attention to a question I raised in my second review: if a
> > program contains "DECLARE foo READAHEAD 5 CURSOR FOR ..." and the user runs
> > the program with ECPGFETCHSZ=10 in the environment, should that cursor use a
> > readahead window of 5 or of 10? Original commentary:
> > http://archives.postgresql.org/message-id/20120329004323.GA17329@tornado.leadboat.com
>
> I'd say it should be 5. I don't like an environment variable overwriting a
> hard-coded setting. I think this is what you, Noah, thought, too, right?
Yes.
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Etsuro Fujita | 2012-04-09 02:55:29 | Re: WIP: Collecting statistics on CSV file data |
| Previous Message | Robert Haas | 2012-04-09 01:37:23 | bug in fast-path locking |