// bad connection tests; see isBad()
	bad       bool
	stickyBad bool

	skipDirtySession bool // tests that use Conn should set this to true.

	// dirtySession tests ResetSession, true if a query has executed
	// until ResetSession is called.
	dirtySession bool

	// The waiter is called before each query. May be used in place of the "WAIT"
	// directive.
	waiter func(context.Context)
}

}

// resetSession checks if the driver connection needs the
// session to be reset and if required, resets it.
func (dc *driverConn) resetSession(ctx context.Context) error {
	dc.Lock()
	defer dc.Unlock()

	if !dc.needReset {
		return nil
	}
	if cr, ok := dc.ci.(driver.SessionResetter); ok {
		return cr.ResetSession(ctx)
	}
	return nil
}