forcedotcom/phoenix — pull request #319 by anoopsjohn (2013-07-05 12:26:16+00:00)
Title: No need to evaluate ColumnExpression in DistinctValueWithCountServerAggregator#aggregate()

No need to evaluate ColumnExpression in DistinctValueWithCountServerAggregator#aggregate()

ServerAggregators#aggregate evaluate the column expression already.(CE is the 1st expression in the child expressions of all the aggregate functions which uses DistinctValueWithCountServerAggregator)