TY - RPRT TI - Apache Calcite: A Foundational Framework for Optimized Query Processing Over Heterogeneous Data Sources AU - Begoli, Edmon AU - Camacho-Rodri´guez, Jesu´s AU - Hyde, Julian AU - Mior, Michael J. AU - Lemire, Daniel PY - 2018 DO - 10.1145/3183713.3190662 UR - https://www.osti.gov/biblio/1474637 ID - 1474637 ER -