function_engine is a low-level plugin that provides the interface for other function plugins.
Warning
Drizzle depends on the function_engine plugin. If it is not loaded, most commands will not work and DATA_DICTIONARY and INFORMATION_SCHEMA will not be available.
This plugin is loaded by default and it should not be unloaded. See the warning above.
Brian Aker
This documentation applies to function_engine 1.0.
To see which version of the plugin a Drizzle server is running, execute:
SELECT MODULE_VERSION FROM DATA_DICTIONARY.MODULES WHERE MODULE_NAME='function_engine'