| From: | "Jie Liang" <jie(at)stbernard(dot)com> |
|---|---|
| To: | "Kris Jurka" <books(at)ejurka(dot)com> |
| Cc: | <pgsql-sql(at)postgresql(dot)org>, <pgsql-jdbc(at)postgresql(dot)org> |
| Subject: | Re: Prepare Statement |
| Date: | 2004-06-21 16:28:38 |
| Message-ID: | E7E213858379814A9AE48CA6754F5ECB034519E6@mail01.stbernard.com |
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| Thread: | |
| Lists: | pgsql-jdbc pgsql-sql |
Does plperl catch the plan also?
Thanks.
Jie Liang
-----Original Message-----
From: Kris Jurka [mailto:books(at)ejurka(dot)com]
Sent: Friday, June 18, 2004 2:47 PM
To: Jie Liang
Cc: pgsql-sql(at)postgresql(dot)org; pgsql-jdbc(at)postgresql(dot)org
Subject: Re: [JDBC] Prepare Statement
On Fri, 18 Jun 2004, Jie Liang wrote:
> However, I am still thinking if I call one SELECT and one DELECT and
> one UPDATE and one INSERT a thousand times against same table with
> different arguments, should I consider performance iusse?
Right, this is a case where some benefits can be found, but remember the
premature optimization adage.
>
> Secondly, I assume the function should be a pre-compiled object stored
> on server side, doesn't it.
>
I depends on the language the function is written. plpgsql caches
plans,
but not all procedural languages do.
Kris Jurka
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