This repo contains the code described in our blog post that demonstrates how to do pandas style groupby-apply aggregation (as opposed to accumulation) in DataFusion.
python3.10 -m venv venv
source venv/bin/activate
pip install git+https://github.com/letsql/xgboost-udaf-ibis
xgboost-udaf-ibis
nix run github:letsql/xgboost-udaf-ibis