[MapServer-dev] Using OGR geoparquet data in mapserver - no spatial filtering

[Even Rouault]

Mike,
> Anyone know a current way to get mapserver to add spatial filtering on OGR geoparquet layers. Have been unable to get the actual sql query being used with CPL_DEBUG inside mapserver with CONFIG "CPL_DEBUG" "ON" but from the performance, it appears no spatial filtering is being done. I suspect code changes to mapogr would be needed to do this but wondering if anyone else has looked into this.
I haven't tried but I would assume this should work
>
> Also, I tried using ADBC connection to parquet, and while it worked (technically) it really used an excessive amount of CPU and memory over using the geoparquet driver.

Yes this is "expected". I noticed that the Arrow API of duckdb tends to 
ingest everything in memory before paging results.

Even

-- 
http://www.spatialys.com
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