Delete old duckdb index files

Update duckdb index files

Update duckdb index files

Update parquet files

Update duckdb index files

Update parquet files

Update duckdb index files

Update duckdb index files

Update parquet files

Update parquet files

Update parquet files

Update parquet files

Update parquet files

Update parquet files

Update parquet files

Fix `license` metadata (#1)

Upload train.csv with git-lfs

Create README.md

initial commit