import duckdb

def get_special_cols():
    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';")
    
    rows = conn.execute("DESCRIBE SELECT * FROM read_parquet('s3://nearle/parquet/deliveries/*.parquet')").fetchall()
    cols = [row[0] for row in rows]
    filtered = [c for c in cols if "name" in c.lower() or "amt" in c.lower() or "amount" in c.lower() or "rider" in c.lower() or "tenant" in c.lower() or "time" in c.lower() or "status" in c.lower()]
    print("Filtered Columns:", filtered)

if __name__ == "__main__":
    get_special_cols()