I'm looking for the formal specification of MDX. Going via xmla specification site, I found it may be in "OLE DB for OLAP specification" which is supposed to be available from microsoft, but I can't find it on their site anywhere.
Any clues? I'm looking for the structure of MDX queries essentially.
I have found language and statement references:
For example, check this out: SELECT Statement. Not a specification, but should be enough, I think.