The relational system's infrastructure is stored in tables that follow a predetermined structure. The data in these tables is generated and maintained by phpMyAdmin on the basis of our actions from the interface.
Metadata tables contain, for all storage engines, information to support the special phpMyAdmin's features such as bookmarks and transformations. Moreover, for tables in a storage engine that does not support foreign keys, relations between tables are kept in this infrastructure.
There are two possible places to store these tables: