Re: set the cost of an aggregate function - Mailing list pgsql-hackers

From Jaime Casanova
Subject Re: set the cost of an aggregate function
Date
Msg-id 3073cc9b1002082001k7fbd40a0p168df5ae486259f4@mail.gmail.com
Whole thread Raw
In response to Re: set the cost of an aggregate function  (Simon Riggs <simon@2ndQuadrant.com>)
List pgsql-hackers
On Thu, Dec 3, 2009 at 7:19 AM, Simon Riggs <simon@2ndquadrant.com> wrote:
>
> The answer is nobody got round to enhancing this yet and well considered
> proposals and subsequent patches would be welcome.
>

what is a well considered proposal in this area? the transition
function cost should be applied to every row cost (maybe multiplied to
cpu_operator_cost or cpu_tuple_cost) and the final function cost
should be applied just once, no?

--
Atentamente,
Jaime Casanova
Soporte y capacitación de PostgreSQL
Asesoría y desarrollo de sistemas
Guayaquil - Ecuador
Cel. +59387171157


pgsql-hackers by date:

Previous
From: Tom Lane
Date:
Subject: Re: [CFReview] Red-Black Tree
Next
From: M Z
Date:
Subject: Re: CVS checkout source code for different branches