Indexes are not a good thing… A blog on TCO

In many of my posts I refer to the issues associated with building “extra” data structures to meet performance goals (see one of my first posts ever┬áhere). These extra structures are always a trade-off… slowing the performance of one function in order to speed up another. I thought that it might be helpful to be…

OLAP is not advanced analytics

OLAP searches a set of pre-aggregated data… a cube. If the cube is large enough that you don’t bump into the edges you might think that your search is ad hoc… but that is an illusion. The set is prescribed not ad hoc. In the 1980’s we sent paper reports out… they were moved on…