AT: extract the archive instead of reading through /vsizip - #238
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GDAL re-inflates the whole deflate stream on every SQLite seek when a GeoPackage is read through /vsizip. The 2018 edition read 85 GB out of a 1.7 GB archive in 40 minutes without finishing. Naming the inner file makes vecorel extract the archive once, and the same read then takes 74 seconds and 4.7 GB. Seven editions (2018-2024) are built and published this way. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01DVx9uQV2QPM8ecPAY3ZjXG
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GDAL re-inflates the whole deflate stream on every SQLite seek when a GeoPackage is read through
/vsizip: the 2018 edition read 85 GB out of a 1.7 GB archive in 40 minutes without finishing. Naming the inner file extracts the archive once, and the same read takes 74 seconds and 4.7 GB.