[gdal-dev] Faster gdalinfo from COG

Even Rouault even.rouault at spatialys.com
Wed Jan 8 11:10:04 PST 2020

> I believe that I used http url directly after reading some QGIS tutorial
> that suggested that /vsicurl/ is no more needed.

Depends on use cases. If you need to process the whole file and that it can 
fit in RAM, then direct http[s:]// without /vsicurl might be slightly faster.
> You are right about how I created the file. I used the GDAL 3.1.0dev COG
> driver and tried to enhance it by computing the statistics with gdal_edit.

OK, I've just pushed a change to emit a warning in such situation

$ python swig/python/scripts/gdal_edit.py -stats byte_cog.tif
Warning 1: The IFD has been rewritten at the end of the file, which breaks COG 


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