Re: help with bison - Mailing list pgsql-hackers

From Neil Conway
Subject Re: help with bison
Date
Msg-id 20020410230309.74d4bc38.nconway@klamath.dyndns.org
Whole thread Raw
In response to Re: help with bison  ("Christopher Kings-Lynne" <chriskl@familyhealth.com.au>)
Responses Re: help with bison  ("Christopher Kings-Lynne" <chriskl@familyhealth.com.au>)
List pgsql-hackers
On Thu, 11 Apr 2002 10:54:14 +0800
"Christopher Kings-Lynne" <chriskl@familyhealth.com.au> wrote:
> Out of interest, since the FE/BE protocol apprently doesn't support prepared
> statements (bound variables), what does this patch actually _do_?

It implements preparable statements, by adding 3 new SQL statements:

PREPARE <plan> AS <query>;
EXECUTE <plan> USING <parameters>;
DEALLOCATE <plan>;

I didn't write the original patch -- that was done by Karel Zak.
But since that was several years ago, I'm working on cleaning it up,
getting it to apply to current sources (which has taken a while),
and fixing the remaining issues with it. Karel describes his work
here:

http://groups.google.com/groups?q=query+cache+plan&hl=en&selm=8l4jua%242fo0%241%40FreeBSD.csie.NCTU.edu.tw&rnum=1

(If that's messed up due to newlines, search for "query cache plan"
on Google Groups, it's the first result)

Cheers,

Neil

-- 
Neil Conway <neilconway@rogers.com>
PGP Key ID: DB3C29FC


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