[Qgis-developer] Reverse order in PostGIS commit?

[Tim Keitt]

On Wed, Jul 9, 2014 at 1:40 AM, Jürgen E. <jef at norbit.de> wrote:

> Hi Paolo,
>
> On Tue, 08. Jul 2014 at 15:48:22 +0200, Paolo Cavallini wrote:
> > I have just noticed that when digitizing new shapes, they get written
> > in a PostGIS table in a reverse order respect to the digitizing order;
>
> You refer to the order of INSERTs?  Why does that matter?   The order in
> which
> you get back the feature after INSERT later is undefined anyway.
>

This is correct. You can get pretty good speedups by clustering your table
on the r-tree index. That reorders the entire table placing spatially
nearby objects nearby in the storage layer.

No one has specified a concrete example, so its pretty difficult to have
any idea what you need. Time stamp + a sorted view? (And top posting makes
this thread pretty hard to understand as well.)

THK


>
>
> Jürgen
>
> --
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