074a979e_09___Dynamics_AX_2009_Features__Feature
[Sr.No.] 11 [Description] AOT Query object enables construction of query that represents union of two or more existing datasources. AOT View object enables to use query as datasource [Feature] 
Queries and Views
Dilip's blog on DYNAMICS AX: What’s New in Dynamics AX 2009 / Dynamics AX 2009 Features
Feature