I'm Yuyang Lan @ Data Infrastructure team. Here is the 14th entry of GREE Advent Calendar 2014. Please enjoy it! Presto (distributed SQL query engine for Big Data open sourced by Facebook) has already been used in GREE's production environment for more than 1 year, and is now an indispensable part to our Big Data toolbox. In this article, I will present you how we use presto and hope that would be