On Mon, 2008-06-16 at 08:59 +0800, laser wrote:
> Hi,
>
> we recently try to build a costumer index type around 8.3, for now
> want to teach
> planner to pick up specific index for our query, so we'd like to use
> some document
> about how a query tree trun into different query plan and how to
> decide which one
> to use. Is there any document about that? Any hints will be great
> appreciated!
>
In the PostgreSQL source:
src/backend/optimizer/README
Regards,Jeff Davis