Arrow Database Connectivity for OLAP Query Engines
Arrow database connections eliminate redundant row-column conversions, speeding up OLAP engines.
Tomáš Vedral
Section
OLAP Runtime Extensibility
3 stories in OLAP Runtime Extensibility.
Foreign Function Interface in Analytical Database Engines
Query planners go blind when foreign functions enter analytical database plans.
Marcus Delacroix-Hwang
User-Defined Functions in Columnar Query Engines
Columnar engines lose speed when UDFs break the system's core assumptions about data layout.
Tomáš Vedral