Trafodion is a database management system that runs on top of Hadoop, providing support for transactional or operational workloads in a big data environment. The following is a list of key features: * ANSI SQL language support * JDBC and ODBC connectivity for Linux and Windows clients * Distributed ACID transaction protection across multiple statements, tables, and rows * Compile-time and run-time optimizations for real-time operational workloads * Support for large data sets using a parallel-aware query optimizer and a parallel data-flow execution engine