Hi,
I have a distinct count measure in a dedicated measure group.
I have create partitions per year + modulo of the UserKey = 8 partitions per year. (I have 15 millions of distinct userkey)
this is good.
I use the profiler and check the access against the partitions, and only the partitions for the years are opened.
but there is thousands of start / end read events against the 8 partitions!!!
why the system needs to scan the same partition about 1500 times?