[Backport queued_ltr_backports] OGR Field domain creation: properly convert QVariant to expect OGR data type #53349
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…ta type (fixes #52318) This fixes the main issues: crashes / data corruption. Note however that currently the GeoPackage driver doesn't really support storing the data type of a field domain, so on reading, range domains are always read as of type Real (unless there is a layer field associated with that domain). An idea could be to (ab)use the description field of the GeoPackage system table to include a conventional suffix like " (type Integer)" that would be automatically set and stripped off by the OGR GPKG driver. It could also be nice that the QGIS GUI only proposes types that make sense for the underlying provider, but there's a lack of infrastructure for that.
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nyalldawson
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Jun 8, 2023
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Backport #53314
Authored by: @rouault