have its type inferred as Never, to indicate that it was not
【事件】前不久，有网友收到了同学寄来的礼物，但因造型稍显奇特而不知从何下手，于是发帖求助：“广西同学寄来的礼物，能吃吗？”评论区网友纷纷答疑解惑，不仅揭秘礼物的真实身份——腊鸭，还细心介绍了食用方法。从“能吃吗”的疑惑，到网友们“像翼龙”的调侃，再到本地人的贴心科普，看似寻常的年货照见真诚而热烈的情谊，让春节更添暖意。，推荐阅读快连下载安装获取更多信息
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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.