func (c *ClientConn) sortSelectResult(r *mysql.Resultset, stmt *sqlparser.Select) error {
if stmt.OrderBy == nil {
return nil
}
sk := make([]mysql.SortKey, len(stmt.OrderBy))
for i, o := range stmt.OrderBy {
sk[i].Name = nstring(o.Expr)
sk[i].Direction = o.Direction
}
return r.Sort(sk)
}
