Specify the maximum number of buckets in the histogram. The default value is 75, minimum value is 1, and maximum value is 254.
Specify the maximum number of buckets in the histogram. The default value is 75, minimum value is 1, and maximum value is 254.
如果某个字段的值的个数多于75个,,默认情况下是75,,可以自己指定..最大为254.