Hi David,
That sounds very useful to me! I often find myself struggling writing
the right expression, or even adding a column to my data to be able to
set the desired provider filter.
But I think the provider filter is more efficient as it really prevents
the data from the file ending up in QGIS. Or am I wrong? Is there a
penalty for filtering data in QGIS?
BTW, even with a performance penalty this functionality could be super
handy for small datasets!
Kind regards,
Raymond
On 9/24/25 14:56, David Signer via QGIS-Developer wrote:
Hi there
I've been considering enhancing the Query Builder (accessible via Layer
-> Filter...) by QGIS expression based filters. At least with project
and global scope.
Maybe with tabs to distinguish between "provider side filter" (current
functionality) and "expression filter" (new functionality).
Any opinions on this? In my view, this could be valuable because it's
available on all kinds of data-layers and allows us to use variables and
functions for filtering as well.
Thanks for any feedback and cheers
Dave
--
Dave Signer
Senior Developer & INTERLIS Architect
OPENGIS.ch - Team QGIS & Industry Solutions
_______________________________________________
QGIS-Developer mailing list
[email protected]
List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
_______________________________________________
QGIS-Developer mailing list
[email protected]
List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
