php - speed up query laravel [solve] -


i need help. in db have 2 tables

my db have 2 table's contracts (around 2 500 000 records) , customers (around 1 500 000 records). relationship between 2 tables/2 models.

class contract extends model {     public function customer()     {         return $this->belongsto('app\customer');     } }   class customer extends model {     public function contracts()     {         return $this->hasmany('app\contract');     } }

with community stack built function

$customers = customer::with(['contracts' => function($query)        {           $query->where('pos', 'ropczyce')                 ->where('typ', 'u')                 ->where('data_end','>=','2017-07-01')                 ->where('data_end','<=','2017-08-31');        }       ])->wherehas('contracts', function ($query) {           $query->where('pos', 'ropczyce')                 ->where('typ', 'u')                 ->where('data_end','>=','2017-07-01')                 ->where('data_end','<=','2017-08-31');       })       ->paginate(20);

but generate data spent lot of time (around 6-7 sec). imagine in moment, function working on customers , searching contracts query true. in opinion problem of the.

i searching solution save time. searching contracts spent around 1 seconds.

$contracts = contract::where('pos', 'ropczyce')                     ->where('typ', 'u')                     ->where('data_end','>=','2017-07-01')                     ->where('data_end','<=','2017-08-31')           ->with('customer')->paginate(20);

i care data built on principle. client1 - contact1, contract2 ... client2 - contact1, contract2 ...

e.t.c

code of table contract

public function up()     {         schema::create('contracts', function (blueprint $table) {             $table->increments('id');             $table->integer('customer_id')->unsigned();             $table->char('phone_number',9);             $table->date('data_start');             $table->date('data_end');             $table->char('contract_number',90);             $table->char('pos',10);             $table->char('typ',1);             $table->char('weryfikacja',1);             $table->date('data_weryfikacji');         });     }

you should add a composite index database these filters, make query faster.

schema::create('contracts', function (blueprint $table) {     $table->increments('id');     $table->integer('customer_id')->unsigned();     $table->char('phone_number',9);     $table->date('data_start');     $table->date('data_end');     $table->char('contract_number',90);     $table->char('pos',10);     $table->char('typ',1);     $table->char('weryfikacja',1);     $table->date('data_weryfikacji');      // composite index faster filtering on these fields.     $table->index(['pos', 'typ', 'date_end']);  });

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