How did you optimize database performance in your high-traffic applications?

Looking at your experience with PostgreSQL and MongoDB, could you tell me about some specific database optimizations you implemented? Maybe focus on connection pooling, query optimization, or any other techniques that made a significant impact on performance.

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你是如何在高流量应用中优化数据库性能的？

看到你有 PostgreSQL 和 MongoDB 的经验，你能告诉我一些你实施的具体数据库优化方法吗？可以重点介绍一下连接池、查询优化或者其他对性能有显著影响的技术。

What's your experience with TypeORM? How does it compare to other ORMs you've used?

I see you used TypeORM with PostgreSQL in your projects. Could you explain why you chose TypeORM specifically? Have you used other ORMs before, and how would you compare them?

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你使用 TypeORM 的经验是什么？与你使用过的其他 ORM 相比如何？

我看到你在项目中使用了 TypeORM 和 PostgreSQL。你能解释一下为什么特别选择 TypeORM 吗？你之前用过其他 ORM 吗，你怎么比较它们之间的差异？