This document discusses the history and future of database technology. It notes that in 1998, almost all major database systems were proprietary, but PostgreSQL provided an open source alternative. Over time, other open source databases like MySQL emerged and grew in popularity. The document predicts that in the future, more databases will be designed for cloud hosting and very large scale deployments, taking advantage of distributed and non-relational architectures. Major technology companies have also adopted open source databases like PostgreSQL and MySQL.