import duckdb

def check_schema():
    conn = duckdb.connect()
    conn.execute("INSTALL httpfs; LOAD httpfs;")
    conn.execute("SET s3_region='sgp1';")
    conn.execute("SET s3_endpoint='sgp1.digitaloceanspaces.com';")
    conn.execute("SET s3_url_style='path';")
    
    df = conn.execute("SELECT * FROM read_parquet('s3://nearle/parquet/deliveries/*.parquet') LIMIT 0").df()
    print("Columns:", df.columns.tolist())

if __name__ == "__main__":
    check_schema()