# -*- coding: utf-8 -*-
import psycopg2

# PostgreSQL数据库连接参数
host = "192.168.100.122:20788"
dbname = "postgres"
user = "freshrss"
password = "freshrss"

# 连接到PostgreSQL数据库
conn = psycopg2.connect(host=host, dbname=dbname, user=user, password=password)
conn.autocommit = True

# 创建一个cursor对象
cur = conn.cursor()

# 获取所有数据库的名称
cur.execute("SELECT datname FROM pg_database WHERE datistemplate = false;")
databases = cur.fetchall()

print("数据库列表:")
for db in databases:
    print(db[0])

    # 连接到具体的数据库
    conn.close()
    conn = psycopg2.connect(dbname=db[0], user=user, password=password, host=host)
    cur = conn.cursor()

    # 获取该数据库中的所有表
    cur.execute("SELECT table_name FROM information_schema.tables WHERE table_schema='public';")
    tables = cur.fetchall()

    print(f"\n数据库 '{db[0]}' 的表列表:")
    for table in tables:
        print(table[0])

# 关闭cursor和连接
cur.close()
conn.close()