How to optimize a very slow query?












0















I have this table structure. id is primary key: 



 id  post_id  email  telegram twitter  address  refer_link  referrer


Table is now relatively big. When I run this query (it has around 9k rows) it takes more than 30 seconds to execute:



select o.email, telegram, twitter, address, IFNULL( (select email from wpkx_airdrop_claim where o.referrer = refer_link ),'') as refer_email, (select count(referrer) from wpkx_airdrop_claim where referrer = o.refer_link ) as refer_count from wpkx_airdrop_claim as o WHERE post_id=8037 order by refer_count DESC


Any idea how to optimize this query to execute it faster?



Thank you.






mysql






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    0















    I have this table structure. id is primary key: 



     id  post_id  email  telegram twitter  address  refer_link  referrer


    Table is now relatively big. When I run this query (it has around 9k rows) it takes more than 30 seconds to execute:



    select o.email, telegram, twitter, address, IFNULL( (select email from wpkx_airdrop_claim where o.referrer = refer_link ),'') as refer_email, (select count(referrer) from wpkx_airdrop_claim where referrer = o.refer_link ) as refer_count from wpkx_airdrop_claim as o WHERE post_id=8037 order by refer_count DESC


    Any idea how to optimize this query to execute it faster?



    Thank you.






    mysql






    share

























      0












      0








      0








      I have this table structure. id is primary key: 



       id  post_id  email  telegram twitter  address  refer_link  referrer


      Table is now relatively big. When I run this query (it has around 9k rows) it takes more than 30 seconds to execute:



      select o.email, telegram, twitter, address, IFNULL( (select email from wpkx_airdrop_claim where o.referrer = refer_link ),'') as refer_email, (select count(referrer) from wpkx_airdrop_claim where referrer = o.refer_link ) as refer_count from wpkx_airdrop_claim as o WHERE post_id=8037 order by refer_count DESC


      Any idea how to optimize this query to execute it faster?



      Thank you.






      mysql






      share














      I have this table structure. id is primary key: 



       id  post_id  email  telegram twitter  address  refer_link  referrer


      Table is now relatively big. When I run this query (it has around 9k rows) it takes more than 30 seconds to execute:



      select o.email, telegram, twitter, address, IFNULL( (select email from wpkx_airdrop_claim where o.referrer = refer_link ),'') as refer_email, (select count(referrer) from wpkx_airdrop_claim where referrer = o.refer_link ) as refer_count from wpkx_airdrop_claim as o WHERE post_id=8037 order by refer_count DESC


      Any idea how to optimize this query to execute it faster?



      Thank you.






      mysql




      mysql





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      share










      share



      share










      asked 9 mins ago









      Ante MedicAnte Medic

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