mysql extra dsn connection settings

[badoet]

is there a way to add the compressed option
and the persistent connection for the MYSQL connection?

[arnehormann]

We do not support compression (yet?). See #24.
If I recall correctly, it was slower than not using it in our tests.

Go uses a connection pool - sql.Open returns a pool and not a single connection. So you always have persistent connections and there's no way not to have them.