import sys, os
sys.path.append(os.path.dirname(os.path.abspath(__file__)) + '/..')
from database import TradeDB

db = TradeDB()
try:
    cols = [dict(r)['Field'] for r in db.conn.execute("SHOW COLUMNS FROM env_config_ext").fetchall()]
    print(f"env_config_ext cols: {cols}")
finally:
    db.close()