## Optimized median measure in Dax

In this post, I describe how to write an optimized median measure in Dax which under specific criteria can be 1,000 times faster than the built-in median function.Some time ago I was tasked to migrate a multidimensional cube to a tabular model, this cube had around 2 billion rows and I also had to create a median measure on the new tabular model. I first thought that the median would be much faster to calculate on a tabular model than on…