Hi Michał, Without knowing a lot about the underlying implementation, I would expect those flags to make no difference in performance. They exist for safety reasons (so you don't modify a dataset by mistake), not as an optimization.
As for the docs, that seems expected. The documentation can't list all the things that a flag does not do. Laurentiu On Thu, Jan 16, 2025, at 09:16, Michał Kowalczuk via gdal-dev wrote: > Any thoughts? :-) > > ---------- Forwarded message --------- > Od: *Michał Kowalczuk* <michkowalc...@gmail.com> > Date: wt., 14 sty 2025 o 12:41 > Subject: GDAL open flags > To: <gdal-dev@lists.osgeo.org> > > > Hi gdal-group! > > Does GDAL_OF_READONLY / GDAL_OF_UPDATE have any impact on performance, > especially when reading common vector files (shp, gpkg, gml)? There is no > recommendation on this in docs. > > Best regards, > Michał Kowalczuk > _______________________________________________ > gdal-dev mailing list > gdal-dev@lists.osgeo.org > https://lists.osgeo.org/mailman/listinfo/gdal-dev >
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