framework/resources/Functional/window_functions/optimization/README - drill-test-framework - Git at Google

 1. 'pp' in test prefix stands for: projection pushdown (sick of q*)

 2. Tests from pp_01 through pp_13 are testing projection pushdown into window operator. See DRILL-3412
	1. 'pp' in test prefix stands for: projection pushdown (sick of q*)

	2. Tests from pp_01 through pp_13 are testing projection pushdown into window operator. See DRILL-3412