#!/usr/bin/env python
# encoding: UTF-8

import psycopg2

def check_permission_table():
    try:
        conn = psycopg2.connect(
            host="39.170.26.156",
            port=8366,
            dbname="test",
            user="postgres",
            password="difyai123456"
        )
        cursor = conn.cursor()
        
        cursor.execute("""
            SELECT column_name, data_type, is_nullable 
            FROM information_schema.columns 
            WHERE table_name = 'permission'
            ORDER BY ordinal_position;
        """)
        
        print("Permission 表结构:")
        print("-" * 60)
        print(f"{'字段名':<20} {'类型':<20} {'是否可空'}")
        print("-" * 60)
        for row in cursor.fetchall():
            print(f"{row[0]:<20} {row[1]:<20} {row[2]}")
        
        conn.close()
    except Exception as e:
        print("Error: " + str(e))

if __name__ == "__main__":
    check_permission_table()