Static STAC search via DuckDB

[gadomski]

Steps:

• Load a collection (or a catalog?)
• Iterate all the item links
• Load them into DuckDB memory Save to a stac-geoparquet file
• Search

This will require updating the DuckDB client to query against an in-table memory, as it currently only hits parquet files.

I couldn't find an easy way to get memory parquet bytes into DuckDB, so tempfile it is, for now.

[gadomski]

Might be able to go back to memory via https://duckdb.org/2025/05/23/arrow-ipc-support-in-duckdb.html

[bitner]

So, definitely for smaller sets of items, you could just use the CQL2-RS reducer to search.