Feature request #16879
Expression editor: add a list of available relations and tables in the project
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It would be good if the epxression editor could show a list of:
a) relations (group could be called "Relations")
b) other tables (group could be called "Tables")
Just like the "Fields and values" group, it would be a list of existing relations and tables.
Otherwise it is a bit complicated spelling relation names and table names correctly.
The relation_aggregate expression and the get_feature function would be much easier to use with this enhancement. I would also assume that in the future, there will be more expression functions that make use of other tables and relations.