[内置运算符](%E5%86%85%E7%BD%AE%E8%BF%90%E7%AE%97%E7%AC%A6.md) [内置函数](%E5%86%85%E7%BD%AE%E5%87%BD%E6%95%B0.md) [自定义函数](%E8%87%AA%E5%AE%9A%E4%B9%89%E5%87%BD%E6%95%B0.md) [Transfrom实现](Transfrom%E5%AE%9E%E7%8E%B0.md) [having和where不同](having%E5%92%8Cwhere%E4%B8%8D%E5%90%8C.md)