Changing Client.prototype._ping to use this instead of self. Self wasn't defined in the context of that prototype method, causing the ping query to fail and throw an exception.
Changing Client.prototype._ping to use this instead of self. Self wasn't defined in the context of that prototype method, causing the ping query to fail and throw an exception.

mscdex/node-mariasql,mscdex/node-mariasql,mscdex/node-mariasql