| From: | Noah Misch <noah(at)leadboat(dot)com> |
|---|---|
| To: | Boszormenyi Zoltan <zb(at)cybertec(dot)at> |
| Cc: | Michael Meskes <meskes(at)postgresql(dot)org>, 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: | 2012-04-10 14:37:22 |
| Message-ID: | 20120410143722.GC6129@tornado.leadboat.com |
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| Lists: | pgsql-hackers |
On Tue, Apr 10, 2012 at 09:35:21AM +0200, Boszormenyi Zoltan wrote:
> So, it's established that a specified READAHEAD N should not
> be overridden. Even an explicit READAHEAD 1.
>
> Only a non-decorated cursor can be overridden, even if
> a different default readahead window size is specified with
> e.g. "ecpg -R 8". If ECPGFETCHSZ is not present, 8 will be used,
> if ECPGFETCHSZ is present, its value will be used. ECPGopen()
> will need an extra bool argument to distinguish this.
>
> Is this acceptable? Noah, Michael?
Sounds perfect.
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