выберите из более чем 10 таблиц (mysql)

Question

Пожалуйста, помогите мне в моем вопросе. У меня есть запрос с select более 10 таблиц, но я жду более 180 секунд. Это очень плохой результат. Как я могу оптимизировать свой запрос?

SELECT main_order.id,main_order.datetime_add,main_order.datetime_update, main_order.id_user_add, main_order.id_user_update,main_order.date_start,main_order.time_start,main_order.date_finish, main_order.time_finish,main_order.order_cashless,main_order.client_paid, main_order.`commentary`, order_addres.`addres`,order_addres.`build` , order_addres.office_or_flat,pack.name, client.name,client.company,client.phone 
FROM main_order,order_addres,pack,client,workers_salary,cash_money,loaders,auto_order,sms 
WHERE 1=1 
    AND date_finish<=:date_finish 
    OR date_finish IS NULL 
GROUP BY main_order.id 
ORDER BY date_start DESC, time_start DESC 

EXPLAIN

Answer 1

В моем коде, я добавил в значения к моим $, где и после того, как все операции вставки для запроса. Как я могу обновить его с помощью LEFT JOIN?

<? 


     $params = array(); 
     $where = " WHERE 1=1"; 

     if(!empty($_GET["id"]) && isset($_GET["id"])) 
     { 
      $params["id"]=$_GET["id"]; 
      $where .= " AND main_order.id=:id"; 
     } 

     if(!empty($_GET["shop_id"]) && isset($_GET["shop_id"])) 
     { 
      $params["number_order"]=$_GET["shop_id"]; 
      $where .= " AND sms.number_order=:number_order AND sms.id_order=main_order.id "; 
     } 



     if(!empty($_GET["date_start"]) && isset($_GET["date_start"])) 
     { 
      $params["date_start"]=date("Y-m-d",strtotime($_GET["date_start"])); 
      $where .= " AND date_start>=:date_start OR date_start IS NULL"; 
     } 

     if(!empty($_GET["time_start"]) && isset($_GET["time_start"])) 
     { 
      $params["time_start"]=date("H:i",strtotime($_GET["time_start"])); 
      $where .= " AND time_start >=:time_start OR time_start IS NULL"; 
     } 

     if(!empty($_GET["date_finish"]) && isset($_GET["date_finish"])) 
     { 
      $params["date_finish"]=date("Y-m-d",strtotime($_GET["date_finish"])); 
      $where .= " AND date_finish<=:date_finish OR date_finish IS NULL"; 
     } 

     if(!empty($_GET["time_finish"]) && isset($_GET["time_finish"])) 
     { 
      $params["time_finish"]=date("H:i",strtotime($_GET["time_finish"])); 
      $where .= " AND time_finish <=:time_finish OR time_finish IS NULL"; 
     } 

     //MANY MANY FILTER HERE I JUST CUT IT ........................... 

     if(!empty($_GET["cashier"]) && isset($_GET["cashier"])) 
     { 
      $i = 1; 
      $where.=" AND ("; 
      foreach ($_GET["cashier"] as $key) 
      { 
      $params["cashier$i"]=$key; 
      $where.= " cash_money.cashier=:cashier$i OR"; 
      $i++; 
      } 
      $where = substr($where, 0, -3).")"; 
     } 

      if(!empty($_GET["status"]) && isset($_GET["status"])) 
     { 
      $i = 1; 
      $where.=" AND ("; 
      foreach ($_GET["status"] as $key) 
      { 
      $params["id_status$i"]=$key; 
      $where.= " main_order.id_status=:id_status$i OR"; 
      $i++; 
      } 
      $where = substr($where, 0, -3).")"; 
     } 


      @$num = (int)$_GET['row']; 
     if ($num == 0) 
      $num = 25; 
     if (!empty($_GET['page'])) 
      $page = (int)$_GET['page']; 
     else 
      $page = 1; 

      $filter_sql = "SELECT main_order.id,main_order.datetime_add,main_order.datetime_update, 
      main_order.id_user_add, 
      main_order.id_user_update,main_order.date_start,main_order.time_start,main_order.date_finish, 
      main_order.time_finish,main_order.order_cashless,main_order.client_paid, main_order.`commentary`, 
      order_addres.`addres`,order_addres.`build` , order_addres.office_or_flat,pack.name, 
      client.name,client.company,client.phone 
      FROM main_order,order_addres,pack,client,workers_salary,cash_money,loaders,auto_order,sms 

      $where 
      GROUP BY main_order.id 
     ORDER BY date_start DESC, time_start DESC 
      ";exit($filter_sql); 

      $res = $pdo->prepare($filter_sql); 
      if(!empty($params)) 
     $res->execute($params); 
     else $res->execute(); 

     $posts = $res->rowCount(); 
     $total = intval(($posts - 1)/$num) + 1; 
     $page = intval($page); 
     if (empty($page) or $page < 0) 
      $page = 1; 
     if ($page > $total) 
      $page = $total; 
     $start = $page * $num - $num; 

     $res = $pdo->prepare("SELECT main_order.id,main_order.datetime_add,main_order.datetime_update, 
      main_order.id_user_add, 
      main_order.id_user_update,main_order.date_start,main_order.time_start,main_order.date_finish, 
      main_order.time_finish,main_order.order_cashless,main_order.client_paid, main_order.`commentary`, 
      order_addres.`addres`,order_addres.`build` , order_addres.office_or_flat,pack.name, 
      client.name,client.company,client.phone 
      FROM main_order,order_addres,pack,client,workers_salary,cash_money,loaders,auto_order,sms 

      $where 
      GROUP BY main_order.id 
     ORDER BY date_start DESC, time_start DESC LIMIT $start,$num 
      "); 







     if(!empty($params)) 
     $res->execute($params); 
     else $res->execute(); 

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