16 indexes per table are allowed. Each index may consist of 1 to 16 columns or parts of columns. In-memory hash tables which are used as temporary tables. Handles large databases. We are using MySQL with some databases that contain 50,000,000 records.
All columns have default values.
Uses GNU Automake, Autoconf, and libtool for portability. Tested with a broad range of different compilers. A very fast thread-based memory allocation system. No memory leaks. Includes isamchk , a very fast utility for table checking, optimization and repair.