Setup and tests source code, so you can experiment, run tests on your own and compare the results: https://github.com/BinaryIgor/code-examples/tree/master/mongodb-vs-postgresql-performance
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，这一点在新收录的资料中也有详细论述
repeating the same one is unambiguous:。业内人士推荐新收录的资料作为进阶阅读
I also put "-" between things that look like multiple words, but would be written as one word today.，详情可参考新收录的资料