Connection pooling - implicit connections.

[Tim Cullen]

The guidance notes make it clear that :

However, a connection can also be implicitly established by invoking a query

If I am using pooled connections and I create a connection implicitly by calling a query, for example:

pool.query('SELECT 1 + 1 AS solution', function(err, rows, fields) {
  if (err) throw err;

  console.log('The solution is: ', rows[0].solution);
});

does that pooled connection get released implicitly when I do  db.end()?

If not how do I release() the connection as pool.release() tells me there is no such release method for pool?

Thanks for your help.

Tim