Howdy,
From Statistic.getKeys: Returns a list of unique keys, or null if no key exist.
I’m not understanding why this is a list of bitsets.
Is the idea that each entry in the list is a bitset of keys which are unique 
when used together?
For example, lets say I have this table:
C0 | C1 | C2
 0 |  2 |  2
 0 |  3 |  4
 1 |  2 |  2
 1 |  3 |  5
None of these columns are individually unique, but when used together (C0, C1), 
and (C0, C2) form a unique set.
So would this be described by the list: ImmutableList.of( ImmutableBitSet.of(0, 
1), ImmutableBitSet.of(0, 2) ) ?

Thanks!


Reply via email to