[gdal-dev] ogrmerge running very slow on merging GML to GPGK

[Vedran Stojnović]

Hi all,

not sure if this is a bug report so I want to check here if someone has
experience with this.
I need to merge 98 GML files, each having one MultiLineString feature into
one layer so I'm using:
ogrmerge -single -f GPKG -o merged.gpkg *.gml

But it takes very long time (few seconds per file), and in the meantime gfs
files are created every few seconds. I'm running ogrmerge from OSGeo4W
Shell on Windows 11 PC, GDAL 3.9.2, released 2024/08/13.

My dataset  is available here (1 MB ZIP with all 98 files):
https://we.tl/t-V8Azs8WokU

-- 
Kind regards,
Vedran Stojnović.
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