Calisto Zuzarte Hamid Pirahesh Wenbin Ma Qi Cheng Linqi Liu Kwai Wong WinMagic : Subquery Elimination Using Window Aggregation. 652-656 2003 conf/sigmod/2003 SIGMOD Conference db/conf/sigmod/sigmod2003.html#ZuzartePMCLW03 http://doi.acm.org/10.1145/872757.872840 http://www.acm.org/sigmod/sigmod03/eproceedings/papers/ind04.pdf