This document summarizes and compares the Xapian and Sphinx search engines. It discusses their key features, strengths, and weaknesses. Xapian is described as having fast search speeds, full-text search support, and low memory usage but lacks in areas like database recovery and field support. Sphinx is characterized as being faster than other solutions, integrating well with databases and NoSQL, and supporting complex queries, but its data source definitions and real-time indexing need more work. The document concludes that while Xapian is good, Sphinx appears better suited for general applications due to its capabilities.
