No obvious hurdles. I can give you pointers if you get stuck. You should be able to stream over the batches without loading the entire file into memory

In particular you should be able to use a GeoParquetRecordBatchReader to iterate over record batches from the Parquet file. You can wrap each one as a Table, which implements GeozeroDatasource

I tried implementing it in the #247.

I did not go with the proposed Table approach, because each batch table would call dataset_begin and dataset_end which can influence writers down the road. I used GeozeroDatasource implementation for RecordBatchReader instead

@kylebarron let me know if you think it is a bad idea