[postgis-users] ST_ConvexHull with millions of records...

[Paul Ramsey]

Of you have a relatively uniform primary key on the table just take
every record mod 100 or something.

P.

On Wed, Jun 15, 2011 at 6:37 AM, Martin Ouellet <geomartino at gmail.com> wrote:
> Hi,
>
> The ST_ConvexHull function generates exactly the geometry that I need to
> get the area covered by each of my tables. By cons, some of
> them have millions of records and the operation crash.
>
> Is there a way to generate a geometry using
> the function ST_ConvexHull but by reducing the precision or by a
> process of aggregation?
>
> The accuracy is not required in my case, only to get an idea of the scope of
> data foreach table.
>
> regards,
>
> MartinO
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