Hi, I am experimenting with the virtual layers. They are quite cool!
I have some suggesions/questions: * It would be nice to have a preview of my query results. Currently it is either it works - or not. If it works, but the results are wrong you have to start from scratch. I would suggest that when you press on the test button you would not only display "No error" or the error message, but maybe the first 10 rows of the result. * Updating the virtual layer: it would be really nice if I could edit/improve on my virtual layers without having to start completely from scratch. --> Oh - now I found out that if you select an existing virtual layer and then use "Layer" --> "Add Layer" --> "Add Virtual Layer", that you can refresh an existing virtual layer. This is really not obvious. I think this is more a usability issue. * it is not very obvious how you can reuse an already existing geometry column. I discovered it by accident, that you can use layer.geometry (regardless of the original name of the geometry column), but I think that it is not obvious. A better hint in the the tooltip would probably help. * Unique identifier column: If you join several tables, you often have the issue that you need to create an artificial primary key. Could we offer a preconfigured builtin pkey - something like a rowid for such cases? * What is the exact purpose of the "Embedded Layers" where you can add/import/remove layers? I noticed that existing layers of the project work anyway without adding/importing them first. Is the idea that you can work on layers that aren't in the project? Should I open feature request tickets for these or are there already plans to address one or the other of the above issues? Thanks anyway for this interesting new feature! Andreas
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