Hi, There are a number of things to be done to properly support different usecases:
*Join / Aggregate functions support in expressions* Some sort of join possibility should be added to expressions (similar to the get_feature function) and some aggregate functions. E.g. join( "otherlayer"."name", ',' ) RIGHT JOIN otherlayer ON otherlayer."id" = this."fk" to create a string like "A,B,C" from three linked entries with name A, B and C. Or average( "otherlayer"."population" ) RIGHT JOIN otherlayer ON otherlayer."id" = this."fk" etc... *Relation support for print composer* Create tables with information from related entries based on the current atlas feature. Other ideas? I'm sure there is a lot more to be done :-) Matthias
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