记录一下此前未用过的CUBE和ROLLUP功能，便于日后查阅使用。 1、 Rollup 的处理机制是在完成基础数据汇总后，按从右至左的顺序，依次移除字段列表末尾的一个字段，对剩余字段进行分组聚合，并将生成的小计结果写入结果表，被移除字段的位置以 null 值填充。

Cube began developing the Aerium C:68X back in 2020, quietly refining concepts and shapes long before the wider world knew what was coming. By the time the first prototypes were revealed in 2022, it ...

You are a data engineer hired by a solid waste management company. The company collects and recycles solid waste across major cities in the country of Brazil. The company operates hundreds of trucks ...