This document contains information about the compatibility of PlanetScaleDB with MySQL features.
While Vitess supports running instances of MariaDB, PlanetScaleDB currently does not.
PlanetScaleDB uses Vitess to scale your database. This means that the PlanetScaleDB only supports the same set of MySQL features as the latest version of Vitess. PlanetScaleDB supports all core features of MySQL 5.7, including standard SQL statements and MySQL-specific commands. In general, you can issue queries against your database as if it were a MySQL database. To learn about what MySQL features Vitess (and therefore PlanetScaleDB) supports, and the limitations that exist, see the Vitess documentation.