在数据库中存储聊天消息的最佳方式?

I'm building a chat app and I want a full history off all messages ever sent in the chat conversation. At the moment I am storing each message as a single row in a table called 'messages'. I am aware that this table could grow huge as even small messages like 'Hi' would have their own database record.I'm building a chat app and I want a full histo