Plugins are expected to be initialized in the order specified by plugin_type_initialization_order.

With one exception of the engine of mysql.plugin table (usually MyISAM), it should go first.

But in fact, first all built-in plugins and command-line plugins are initialized in the plugin_type_initialization_order. After that all mysql.plugin are initialized in the plugin_type_initialization_order.

As a result, encryption and compression plugins from mysql.plugin are initialized after built-in InnoDB.