Hi Carrie, Thanks for the explanation...
We sometimes have tables with several multicolumn stats having the same number
of unique values.
In this example:
collect stats column (A,B) on tableA;
collect stats column (A,B,C) on tableA;
collect stats column (A,B,C,D) on tableA;
are collected, becasue any of those combinations could be used in a
join or filter....
All three collections give the same number of unique values.
Even when I increase the MAXVALUELENGTH to the max length of 140,
I still see the same number of unique values for all 3,,,
And column C & D do not have constant values.....
So that's kind of strange for me...
should we still collect all 3 sets?