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