pentaho/mondrian — pull request #345 by mkambol (2014-06-30 18:57:52+00:00)
Title: [MONDRIAN-2128][MONDRIAN-2016]  Addressing two issues with the Aggregate...

... function when a second parameter is specified. Aggregate() would formerly sum up the value of the second parameter, even if a different aggregator was appropriate (e.g. if a count distinct measure was specified). If the second parameter is not a base measure we fall back to summing (consistent with SSAS when Aggregate is applied on a non-measures calculated member).

This commit also fixes a related issue involving non-additive measures in context when the 2 argument form of Aggregate is evaluated. Formerly this would cause the second argument to be ignored.
These changes were merged from Will Gorman's branch: https://github.com/wgorman/mondrian/commit/e19cda6a2e1b03e2482dca502ffef258e41baa7a