Postgres聊天消息历史记录 (Postgres Chat Message History)

本文档介绍如何使用Postgres存储聊天消息历史记录。(This notebook goes over how to use Postgres to store chat message history.)

from langchain.memory import PostgresChatMessageHistory

history = PostgresChatMessageHistory(
    connection_string="postgresql://postgres:mypassword@localhost/chat_history",
    session_id="foo",
)

history.add_user_message("hi!")

history.add_ai_message("whats up?")

history.messages