if !regexp.MustCompile("SELECT id, name, iv.total, iv.paid, iv.balance FROM .table_employees. LEFT JOIN \\(SELECT seller, SUM\\(total\\) as total, SUM\\(paid\\) as paid, SUM\\(balance\\) as balance FROM .table_invoices. GROUP BY .seller.\\) AS iv ON iv.seller = table_employees.id").MatchString(stmt.SQL.String()) {