和值不同的是,变量没有固有类型。
对于指定的度量值,所请求的聚合类型与固有类型不匹配。
Aggregate type requested does not match inherent type for a specified measure.
如果不使用值压缩,则null值以数据类型固有的固定大小存储,这通常大于3个字节。
Without value compression, NULL values are stored with the data type inherent fixed size, which is typically larger than the three bytes.
Now when the only types we're dealing with are the built-in types, the ones that came with the programming language, that doesn't really matter.
现在我们对付的数据类型,只有内置的数据类型,也就是编程语言固有的类型。
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