Postgres

PostgreSQL also known as Postgres, is a free and open-source relational database management system (RDBMS) emphasizing extensibility and SQL compliance.

本笔记本介绍了如何使用 Postgres 存储聊天消息历史记录。

from langchain_community.chat_message_histories 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?")

API 参考：PostgresChatMessageHistory

history.messages