Sandro Santilli <[email protected]> writes: > On Fri, Oct 15, 2021 at 08:12:07AM -0400, Greg Troxel wrote: > >> There's a larger question lurking behind that, which is something about >> if tables in SQL can have NULL values and how that NULL is mapped into >> qgis's main internal representation and then back out to various >> formats. (I know there's a great CJ Date rant about NULL not belonging >> in SQL and how it is a symptom of denormalized data, but it is how it is >> these days.) > > I don't think QGIS needs to support "null" values for feature id. > Features *need* to have an not-null identifier.
Sounds perfectly reasonable, but in that case I would expect that it is a non-optional argument to a constructor, and there should not be a way to have a default value. There might also be a non-duplicate integrity constraint.
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