[Qgis-user] Very slow performance with large SHP files, with over 200k objects
jr.morreale at enoreth.net
jr.morreale at enoreth.net
Mon Mar 7 00:20:16 PST 2011
On Mon, 7 Mar 2011 16:13:32 +0800, Thiru Chandran
<tiruchirapalli at gmail.com> wrote:
> Looks like QGIS is not able to handle very large SHP files. Here we
> are
> talking about SHP files with over 200K polygons and the one that we
> are over
> 500K objects.
>
> Even to open, it takes quite a long, say more than 40 seconds.
>
> The issue is with search, if you do any attribute search then, its as
> good
> as 5 mins to respond.
>
> I have seen some earlier threads complaining/having the same
> problem.. well
> any patch / progress on this?
>
> this is a critical requirement in one of the application and without
> the
> performance, we really cant make it.
>
> hope to see some light on this ... can we expect this in v 1.7?
>
>
> Richard.
>
> Northern Territory
> Australia
Even if the threading branch brings some real improvements over 1.6,
you would get a better result by converting your dataset to a database
such as spatialite on whihc you can set indexes and spatial idx.
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