code: func (idx *Index) RawQuery(query string) *PQLBaseQuery {
  	q := NewPQLBaseQuery(query, idx, nil)
  	// NOTE: raw queries always assumed to have keys set
  	q.hasKeys = true
  	return q
  }
docs: // RawQuery creates a query with the given string.
  // Note that the query is not validated before sending to the server.