[Qgis-developer] Ideas/proposal for Attribute Table

Nyall Dawson nyall.dawson at gmail.com
Tue Jan 7 12:00:33 PST 2014

> Adding to QgsExpression doesn't make much sense as QgsExpression is only
based on a single feature.  You would need layer on top of if with
functions that can do aggregates.
> - Nathan

I would love to see layer stats in QgsExpression. Then it'd be possible to
generate expressions which could compare individual features to the entire
layer - eg testing if a value is greater than the layer mean, etc...

There's already a bunch of non-feature specific functions in QgsExpression
and a lot of demand for even more.

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