Metakit - embedded database library with small footprint

Metakit is an embedded database library with a small footprint. It fills the gap between flat-file, relational, object-oriented, and tree-structured databases, supporting relational joins, serialization, nested structures, and instant schema evolution. Metakit stores individual columns separately (column-oriented architecture).

• Both the code and datafiles are portable. All byte-ordering managed by the library.
• Store multiple nested data structures, to create document-centric applications
• Recover from system-failures
• Support of both 32 and 64 bit platforms
• Supports sorting, relational join / group by, set operations, permutations, hashing
• Python and TCL client APIs available