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How to limit the results from a Left Join in Magento?


How do you iterate the resultset of a join?Filter Collection with result of previous collectionProduct Collection for Default CategorySQLSTATE[42S02]: Base table or view not found: 1146 Table 'core_store' doesn't existMagento customer left join not returning all column from customer tableSubselect as main_table on magento collectionProduct List Collection to not show products in Category x unless products ids in?Magento sales_order_grid + join concatenated results from other queryMagento 1.9: How to show instock items first in product listing even after using sortingMagento - Add customer attribute to order grid













0















I have a collection that I need to join with another collection... the problem is the table contains 125k rows and so it times out.



 //Fields
$this->addFieldToSelect('id');
$this->addFieldToSelect('subject');
$this->addFieldToSelect('email_address');
$this->addFieldToSelect('mail_id');
$this->addFieldToSelect('date_sent');
$this->addFieldToSelect('customer_id');

//Get latest status
$this->getSelect()->joinLeft(
array('me1' => Mage::getResourceModel('someprovider_mail/event')->getMainTable()),
'main_table.id = me1.email_id',
'event_type as current_status'
);

$this->getSelect()->joinLeft(
array('me2' => Mage::getResourceModel('someprovider_mail/event')->getMainTable()),
'(main_table.id = me2.email_id AND (me1.timestamp < me2.timestamp OR me1.timestamp = me2.timestamp AND me1.id < me2.id))',
false
);


So I need to limit just what comes back in the joinLeft()... how is that possible?










share|improve this question
















bumped to the homepage by Community 2 hours ago


This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.



















    0















    I have a collection that I need to join with another collection... the problem is the table contains 125k rows and so it times out.



     //Fields
    $this->addFieldToSelect('id');
    $this->addFieldToSelect('subject');
    $this->addFieldToSelect('email_address');
    $this->addFieldToSelect('mail_id');
    $this->addFieldToSelect('date_sent');
    $this->addFieldToSelect('customer_id');

    //Get latest status
    $this->getSelect()->joinLeft(
    array('me1' => Mage::getResourceModel('someprovider_mail/event')->getMainTable()),
    'main_table.id = me1.email_id',
    'event_type as current_status'
    );

    $this->getSelect()->joinLeft(
    array('me2' => Mage::getResourceModel('someprovider_mail/event')->getMainTable()),
    '(main_table.id = me2.email_id AND (me1.timestamp < me2.timestamp OR me1.timestamp = me2.timestamp AND me1.id < me2.id))',
    false
    );


    So I need to limit just what comes back in the joinLeft()... how is that possible?










    share|improve this question
















    bumped to the homepage by Community 2 hours ago


    This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.

















      0












      0








      0








      I have a collection that I need to join with another collection... the problem is the table contains 125k rows and so it times out.



       //Fields
      $this->addFieldToSelect('id');
      $this->addFieldToSelect('subject');
      $this->addFieldToSelect('email_address');
      $this->addFieldToSelect('mail_id');
      $this->addFieldToSelect('date_sent');
      $this->addFieldToSelect('customer_id');

      //Get latest status
      $this->getSelect()->joinLeft(
      array('me1' => Mage::getResourceModel('someprovider_mail/event')->getMainTable()),
      'main_table.id = me1.email_id',
      'event_type as current_status'
      );

      $this->getSelect()->joinLeft(
      array('me2' => Mage::getResourceModel('someprovider_mail/event')->getMainTable()),
      '(main_table.id = me2.email_id AND (me1.timestamp < me2.timestamp OR me1.timestamp = me2.timestamp AND me1.id < me2.id))',
      false
      );


      So I need to limit just what comes back in the joinLeft()... how is that possible?










      share|improve this question
















      I have a collection that I need to join with another collection... the problem is the table contains 125k rows and so it times out.



       //Fields
      $this->addFieldToSelect('id');
      $this->addFieldToSelect('subject');
      $this->addFieldToSelect('email_address');
      $this->addFieldToSelect('mail_id');
      $this->addFieldToSelect('date_sent');
      $this->addFieldToSelect('customer_id');

      //Get latest status
      $this->getSelect()->joinLeft(
      array('me1' => Mage::getResourceModel('someprovider_mail/event')->getMainTable()),
      'main_table.id = me1.email_id',
      'event_type as current_status'
      );

      $this->getSelect()->joinLeft(
      array('me2' => Mage::getResourceModel('someprovider_mail/event')->getMainTable()),
      '(main_table.id = me2.email_id AND (me1.timestamp < me2.timestamp OR me1.timestamp = me2.timestamp AND me1.id < me2.id))',
      false
      );


      So I need to limit just what comes back in the joinLeft()... how is that possible?







      magento-1.9 module collection






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited May 30 '17 at 22:24









      Rafael Corrêa Gomes

      4,58423265




      4,58423265










      asked May 30 '17 at 21:41









      Adam CoburnAdam Coburn

      10817




      10817





      bumped to the homepage by Community 2 hours ago


      This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.







      bumped to the homepage by Community 2 hours ago


      This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.






















          3 Answers
          3






          active

          oldest

          votes


















          0














          At the end you can limit the records you want



          $this->getSelect()->limit(20);





          share|improve this answer























          • The problem is I want all from the main collection, it's the join on the events that has 125k rows that I want to limit

            – Adam Coburn
            May 31 '17 at 10:45


















          0














          This work for me:



          $this->getSelect()->joinLeft(
          array('me1' => Mage::getResourceModel('someprovider_mail/event')->getMainTable()),
          'me1.event_type = (SELECT event_type FROM me1 WHERE main_table.id = me1.email_id LIMIT 1)',
          'event_type as current_status'
          );


          but it's got very bad perfomance impact.



          Hope some one find a better solution.






          share|improve this answer






























            0














            I check and understand Mage::getResourceModel('someprovider_mail/event')->getMainTable() is grow day by day i think. limit is not a good solution for this.



            I have provide two good solution for this.



            Solution 1: : In your query you can narrow down some more based on Date or any other fields.



            Solution 2: : Try to create another table what are the fields you need, Write a insert query based on your needs and setup in cron tab run everyday or twice a day and store in created table. This is what all reporting company are storing and retrieve data fast.



            Any other best solution also appreciated.






            share|improve this answer






















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              3 Answers
              3






              active

              oldest

              votes








              3 Answers
              3






              active

              oldest

              votes









              active

              oldest

              votes






              active

              oldest

              votes









              0














              At the end you can limit the records you want



              $this->getSelect()->limit(20);





              share|improve this answer























              • The problem is I want all from the main collection, it's the join on the events that has 125k rows that I want to limit

                – Adam Coburn
                May 31 '17 at 10:45















              0














              At the end you can limit the records you want



              $this->getSelect()->limit(20);





              share|improve this answer























              • The problem is I want all from the main collection, it's the join on the events that has 125k rows that I want to limit

                – Adam Coburn
                May 31 '17 at 10:45













              0












              0








              0







              At the end you can limit the records you want



              $this->getSelect()->limit(20);





              share|improve this answer













              At the end you can limit the records you want



              $this->getSelect()->limit(20);






              share|improve this answer












              share|improve this answer



              share|improve this answer










              answered May 31 '17 at 4:31









              PriyankPriyank

              5,21241950




              5,21241950












              • The problem is I want all from the main collection, it's the join on the events that has 125k rows that I want to limit

                – Adam Coburn
                May 31 '17 at 10:45

















              • The problem is I want all from the main collection, it's the join on the events that has 125k rows that I want to limit

                – Adam Coburn
                May 31 '17 at 10:45
















              The problem is I want all from the main collection, it's the join on the events that has 125k rows that I want to limit

              – Adam Coburn
              May 31 '17 at 10:45





              The problem is I want all from the main collection, it's the join on the events that has 125k rows that I want to limit

              – Adam Coburn
              May 31 '17 at 10:45













              0














              This work for me:



              $this->getSelect()->joinLeft(
              array('me1' => Mage::getResourceModel('someprovider_mail/event')->getMainTable()),
              'me1.event_type = (SELECT event_type FROM me1 WHERE main_table.id = me1.email_id LIMIT 1)',
              'event_type as current_status'
              );


              but it's got very bad perfomance impact.



              Hope some one find a better solution.






              share|improve this answer



























                0














                This work for me:



                $this->getSelect()->joinLeft(
                array('me1' => Mage::getResourceModel('someprovider_mail/event')->getMainTable()),
                'me1.event_type = (SELECT event_type FROM me1 WHERE main_table.id = me1.email_id LIMIT 1)',
                'event_type as current_status'
                );


                but it's got very bad perfomance impact.



                Hope some one find a better solution.






                share|improve this answer

























                  0












                  0








                  0







                  This work for me:



                  $this->getSelect()->joinLeft(
                  array('me1' => Mage::getResourceModel('someprovider_mail/event')->getMainTable()),
                  'me1.event_type = (SELECT event_type FROM me1 WHERE main_table.id = me1.email_id LIMIT 1)',
                  'event_type as current_status'
                  );


                  but it's got very bad perfomance impact.



                  Hope some one find a better solution.






                  share|improve this answer













                  This work for me:



                  $this->getSelect()->joinLeft(
                  array('me1' => Mage::getResourceModel('someprovider_mail/event')->getMainTable()),
                  'me1.event_type = (SELECT event_type FROM me1 WHERE main_table.id = me1.email_id LIMIT 1)',
                  'event_type as current_status'
                  );


                  but it's got very bad perfomance impact.



                  Hope some one find a better solution.







                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered Jun 29 '17 at 18:12









                  krybbiokrybbio

                  607622




                  607622





















                      0














                      I check and understand Mage::getResourceModel('someprovider_mail/event')->getMainTable() is grow day by day i think. limit is not a good solution for this.



                      I have provide two good solution for this.



                      Solution 1: : In your query you can narrow down some more based on Date or any other fields.



                      Solution 2: : Try to create another table what are the fields you need, Write a insert query based on your needs and setup in cron tab run everyday or twice a day and store in created table. This is what all reporting company are storing and retrieve data fast.



                      Any other best solution also appreciated.






                      share|improve this answer



























                        0














                        I check and understand Mage::getResourceModel('someprovider_mail/event')->getMainTable() is grow day by day i think. limit is not a good solution for this.



                        I have provide two good solution for this.



                        Solution 1: : In your query you can narrow down some more based on Date or any other fields.



                        Solution 2: : Try to create another table what are the fields you need, Write a insert query based on your needs and setup in cron tab run everyday or twice a day and store in created table. This is what all reporting company are storing and retrieve data fast.



                        Any other best solution also appreciated.






                        share|improve this answer

























                          0












                          0








                          0







                          I check and understand Mage::getResourceModel('someprovider_mail/event')->getMainTable() is grow day by day i think. limit is not a good solution for this.



                          I have provide two good solution for this.



                          Solution 1: : In your query you can narrow down some more based on Date or any other fields.



                          Solution 2: : Try to create another table what are the fields you need, Write a insert query based on your needs and setup in cron tab run everyday or twice a day and store in created table. This is what all reporting company are storing and retrieve data fast.



                          Any other best solution also appreciated.






                          share|improve this answer













                          I check and understand Mage::getResourceModel('someprovider_mail/event')->getMainTable() is grow day by day i think. limit is not a good solution for this.



                          I have provide two good solution for this.



                          Solution 1: : In your query you can narrow down some more based on Date or any other fields.



                          Solution 2: : Try to create another table what are the fields you need, Write a insert query based on your needs and setup in cron tab run everyday or twice a day and store in created table. This is what all reporting company are storing and retrieve data fast.



                          Any other best solution also appreciated.







                          share|improve this answer












                          share|improve this answer



                          share|improve this answer










                          answered Jun 29 '17 at 19:00









                          Rama Chandran MRama Chandran M

                          2,73581530




                          2,73581530



























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