Documents of products collection are intentionally designed to be more complex and larger than accounts - I want to see what happens, what is the performance penalty mainly, once individual documents are stored on multiple database pages. In Postgres, page size is 8 KB by default - in practice, the goal is to have at least 4 rows stored on a single page, so every record that is larger than 2 KB is put on two or more disk pages. It obviously reduces performance for both writes & reads - more disk pages to read from and write to. In Mongo it works slightly differently in details, but essentially in the same vein - larger documents are stored on more than one page, degrading performance for all operations. In both cases we are about to see - how much exactly.
加之行业内大量媒体,只做案头工作,采访聊胜于无,它就已经把自己的命门彻底暴露了出来。面对数据整合与逻辑推演能力呈指数级进化的 AI,这种低附加值的手工作坊被成批淘汰,也只是一个时间问题。,推荐阅读safew官方下载获取更多信息
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Олег Давыдов (Редактор отдела «Интернет и СМИ»)
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