Writing Plugins for MariaDB

About

Generally speaking, writing plugins for MariaDB is very similar to writing plugins for MySQL.

Authentication Plugins

See Pluggable Authentication.

Storage Engine Plugins

Storage engines can extend CREATE TABLE syntax with optional index, field, and table attribute clauses. See for more information.

See .

Information Schema Plugins

Information Schema plugins can have their own and statements. See .

Encryption Plugins

in MariaDB are used for the feature. They are responsible for both key management and for the actual encryption and decryption of data.

Function Plugins

Function plugins add new SQL functions to MariaDB. Unlike the old API, function plugins can do almost anything that a built-function can.

Plugin Declaration Structure

The MariaDB plugin declaration differs from the MySQL plugin declaration in the following ways:

1. it has no useless 'reserved' field (the very last field in the MySQL plugin declaration)

2. it has a 'maturity' declaration

3. it has a field for a text representation of the version field

MariaDB can load plugins that only have the MySQL plugin declaration but both PLUGIN_MATURITY and PLUGIN_AUTH_VERSION will show up as 'Unknown' in the .

For compiled-in (not dynamically loaded) plugins, the presence of the MariaDB plugin declaration is mandatory.

Example Plugin Declaration

The MariaDB plugin declaration looks like this:

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