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Build out infrastructure for converting to and loading GeoParquet #10

@MaxwellBo

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@MaxwellBo

DuckDB says it doesn't support it, but the underlying library days it supports it.

We might want to confirm that the duckdb-wasm included with Framework does have the spatial extension available. And that it can load GeoParquet.

If we confirm both of those, we should attempt a mass standardization to use GeoParquet (which our Python GeoPandas supports).

With that, we can build a high performance alternative to Mecone Mosiac where we can minimize data loads with HTTP Range requests against Parquet in a CDN, by only SELECTing a minimal column set on first load.

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