MySqlConnectionDo not update server settings on connections in pool
A connection might be long lived in the pool, however the connections server settings are updated (SHOW VARIABLES command) each time returned to the pool. This makes the client use of the connection object up to date with the correct server settings. However this causes a round trip and to optimize pooling performance this behaviour can be turned off.
This connection string (Do not update server settings on connections in pool using MySqlConnection) can be used for connections to MySQL.