Hi Régis
The attribute table is not using any providers indexes. And when
thinking about it a couple of questions arise like stable syntax across
providers (different providers need different SQL which either needs to
be translated from QgsExpressions or written by the user). Then a
request
-developer] Performance for selection on attribute table
Hi Régis
The attribute table is not using any providers indexes. And when thinking
about it a couple of questions arise like stable syntax across providers
(different providers need different SQL which either needs to be translated
from
...@gmx.ch]
Envoyé : jeudi 28 mars 2013 10:01
À : HAUBOURG
Cc : 'qgis-developer@lists.osgeo.org'
Objet : Re: [Qgis-developer] Performance for selection on attribute table
On Don 28 Mär 2013 09:49:17 CET, HAUBOURG wrote:
Thanks guys,
I also raised on list issues with redrawing triggered by selection
@lists.osgeo.org Objet
: Re: [Qgis-developer] Performance for selection on attribute table
Hi Régis
The attribute table is not using any providers indexes. And when thinking
about it a couple of questions arise like stable syntax across providers
(different providers need different SQL which
purpose.
http://hub.qgis.org/issues/7463
Cheers
régis
-Message d'origine-
De : Matthias Kuhn [mailto:matthias.k...@gmx.ch]
Envoyé : jeudi 28 mars 2013 10:01
À : HAUBOURG
Cc : 'qgis-developer@lists.osgeo.org'
Objet : Re: [Qgis-developer] Performance for selection on attribute table
Hi dev's, I was notified some performance matters when dealing with
selections in attribute tables, by some users swithcing from arcgis to QGIS.
Indexes of datasource seem to be ignored for SQL selection and search. This
leads to very slow selections when dealing with large datasets.
Anyone
