Hi, all
*RowKeyDesc* there is a tailMask and its value is assigned by
this.tailMask = fullMask ^ mandatoryColumnMask ^ aggrGroupFullMask
AFAIK, fullMask would be all 1 byte and mandatoryColumnMask would be byte with
only mandatory column desc got assgining value 1.
aggrGroupFullMask goes to the value that only present on each aggregation group
would be assigned as 1.
But this.tailMask made me a little confused and CANNOT quite catch the real
meaning.
Hope for some interesting explaination : )
Best,
Sun.
[email protected]
