@inproceedings{SIGMOD-2013-YuHLCZ,
	author        = "Feng Yu and Wen-Chi Hou and Cheng Luo and Dunren Che and Mengxia Zhu",
	booktitle     = "{Proceedings of the 31st ACM SIGMOD International Conference on Management of Data}",
	doi           = "10.1145/2463676.2463701",
	isbn          = "978-1-4503-2037-5",
	pages         = "469--480",
	publisher     = "{ACM}",
	title         = "{CS2: a new database synopsis for query estimation}",
	year          = 2013,
}