Close all pool connection after timeout

Hi, What is the correct way to obtain this behaviour: Have a pool with max 10 connection, use all connection when needed, after a certain amount of time close all unused connections. I try: ```javascript { minimumIdle: 0 } ``` This break the `getConnection` function, with this conf the pool just stop to give connections. ```javascript { minimumIdle: undefined, idleTimeout: 50 } ``` The `idleTimeout` is just ignored and all connections of the pool remain available for ever. So what is the correct way have my desired behaviour ?