DuckDB <> Extension Playground

This is a simple project that permits me to play and understand Duckdb UDF function API. The main class is first_extension which provides two functions. One is the classic hello world the other one is a simple a function that uses H3 to calculate the distance in KM between two points expressed in geohash

Load submodule

git submodule update --init --recursive 

To build, type

make

To run, run the bundled duckdb shell:

 ./duckdb/build/release/duckdb 

Then, load the simple extension like so:

LOAD 'build/release/first_extensions.duckdb_extension';

select hello('World from Italy');

select distance_in_km('8f2830828052d25', '8f283082a30e623');