Impala: A Modern, Open-Source SQL Engine for Hadoop Marcel Kornacker Alexander Behm Victor Bittorf Taras Bobrovytsky Casey Ching Alan Choi Justin Erickson Martin Grund Daniel Hecht Matthew Jacobs Ishaan Joshi Lenni Kuff Dileep Kumar Alex Leblang Nong Li Ippokratis Pandis Henry Robinson David Rorke Silvius Rus John Russell Dimitris Tsirogiannis Skye Wanderman-Milne Michael Yoder Cloudera http://imp