We often see users reaching for the Nullable type, which allows columns to store a Null value. Under the hood, this creates a separate column of UInt8 type. This additional column has to be processed every time a user works with a Nullable column. This leads to additional storage space used and almost always negatively affects performance.
What drives this? Am I just bored?
，这一点在新收录的资料中也有详细论述
Lex: FT's flagship investment column
体感上，Ring 更像“严苛的资深 Reviewer”，Tbox 更像“把结论写成可传播资产的编辑部”。
Назван способ законно хранить вещи на лестничной клетке20:55