func (l *SQLLinkIterator) buildResult(result []string, cols []string) map[string]string {
var q quad.Quad
q.Subject = result[0]
q.Predicate = result[1]
q.Object = result[2]
q.Label = result[3]
l.resultQuad = q
m := make(map[string]string)
for i, c := range cols[4:] {
m[c] = result[i+4]
}
return m
}
