Business Intelligence: Understanding DAX Query Plans
This paper is an introduction to query optimization of DAX code through the usage of the DAX query plans. It uses the Contoso database and the Tabular version of AdventureWorks, available on CodePlex.
The goal of the paper is not that of showing complex optimization techniques. Rather, we focus on how to read different formulations of the same query understanding why they behave differently, by means of reading their query plans.