Hi Paolo, I asked the same question, but apparently there are technical reasons.
The Query builder creates a query that a data source can understand (e.g. OGR) - data is filtered at its source.
Whereas the expression builder is much, much richer and can't be translated to filters of data providers. Thus, such data filtering can only be done in the client - means that all features are requested from the source and then filtered client side.
I don't know if it would be technically possible to restrict the expression builder to a subset that a data provider can understand - so that the user can have just one interface, both with a limited set of operators and functions.
Andreas On 15.09.2017 18:03, Paolo Cavallini wrote:
Hi all, the two dialogs are quite different, whereas they do essentialy the same thing. Questions: * is there a specific reason why the Query builder has not been updated, or is it just the usual lack of time? * is anyone planning to work on this? Thanks. _______________________________________________ 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
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