Introducing a new SQLite driver for WordPress – WordPress Playground

WordPress has released a new SQLite driver that provides better MySQL compatibility through advanced query parsing and emulation. The driver features a complete MySQL lexer and grammar parser written in PHP, supports complex SQL operations like subqueries and UNION statements, and includes MySQL information schema emulation. It's currently available as a feature flag in the SQLite Database Integration plugin v2.2.1+ and powers WordPress Playground. The new architecture enables more robust MySQL feature support and lays groundwork for future database engine compatibility within WordPress.