SELECT 
  company_descriptions.*, 
  companies.*, 
  cscart_vendor_plan_descriptions.plan, 
  cscart_seo_names.name as seo_name, 
  cscart_seo_names.path as seo_path, 
  AVG(
    cscart_discussion_rating.rating_value
  ) AS average_rating, 
  CONCAT(
    companies.company_id, 
    '_', 
    IF (
      cscart_discussion_rating.thread_id, 
      cscart_discussion_rating.thread_id, 
      '0'
    )
  ) AS company_thread_ids, 
  company_descriptions.page_title, 
  company_descriptions.meta_description, 
  company_descriptions.meta_keywords 
FROM 
  cscart_companies AS companies 
  LEFT JOIN cscart_company_descriptions AS company_descriptions ON company_descriptions.company_id = companies.company_id 
  AND company_descriptions.lang_code = 'en' 
  LEFT JOIN cscart_vendor_plan_descriptions ON companies.plan_id = cscart_vendor_plan_descriptions.plan_id 
  AND cscart_vendor_plan_descriptions.lang_code = 'en' 
  LEFT JOIN cscart_seo_names ON cscart_seo_names.object_id = 519 
  AND cscart_seo_names.type = 'm' 
  AND cscart_seo_names.dispatch = '' 
  AND cscart_seo_names.lang_code = 'en' 
  LEFT JOIN cscart_discussion ON cscart_discussion.object_id = companies.company_id 
  AND cscart_discussion.object_type = 'M' 
  LEFT JOIN cscart_discussion_posts ON cscart_discussion_posts.thread_id = cscart_discussion.thread_id 
  AND cscart_discussion_posts.status = 'A' 
  LEFT JOIN cscart_discussion_rating ON cscart_discussion.thread_id = cscart_discussion_rating.thread_id 
  AND cscart_discussion_rating.post_id = cscart_discussion_posts.post_id 
WHERE 
  companies.company_id = 519

Query time 0.00143

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "5.06"
    },
    "nested_loop": [
      {
        "table": {
          "table_name": "companies",
          "access_type": "const",
          "possible_keys": [
            "PRIMARY"
          ],
          "key": "PRIMARY",
          "used_key_parts": [
            "company_id"
          ],
          "key_length": "4",
          "ref": [
            "const"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 1,
          "filtered": "100.00",
          "cost_info": {
            "read_cost": "0.00",
            "eval_cost": "0.20",
            "prefix_cost": "0.00",
            "data_read_per_join": "9K"
          },
          "used_columns": [
            "company_id",
            "status",
            "company",
            "lang_code",
            "address",
            "city",
            "state",
            "country",
            "zipcode",
            "email",
            "phone",
            "url",
            "storefront",
            "secure_storefront",
            "entry_page",
            "redirect_customer",
            "countries_list",
            "timestamp",
            "shippings",
            "logos",
            "request_user_id",
            "request_account_name",
            "request_account_data",
            "pre_moderation",
            "pre_moderation_edit",
            "pre_moderation_edit_vendors",
            "plan_id",
            "sd_vendor_helper",
            "identifier_facebook_pixel",
            "stripe_connect_account_id",
            "tax_number",
            "facebook_pixel_id",
            "facebook_api_token",
            "handling_time_us",
            "handling_time_uk",
            "handling_time_it",
            "handling_time_in",
            "handling_time_mx",
            "handling_time_es",
            "handling_time_de",
            "handling_time_fr",
            "handling_time_cn",
            "handling_time_ca",
            "handling_time_jp",
            "handling_time",
            "blocked_date",
            "booking_data",
            "stripe_connect_account_type",
            "registered_from_storefront_id",
            "ec_rfq_whatsapp_number",
            "ec_rfq_phone_number",
            "ec_rfq_bhf",
            "ec_rfq_bht",
            "sd_ga_tracking_code",
            "sd_ga_api_secret"
          ]
        }
      },
      {
        "table": {
          "table_name": "company_descriptions",
          "access_type": "const",
          "possible_keys": [
            "PRIMARY"
          ],
          "key": "PRIMARY",
          "used_key_parts": [
            "company_id",
            "lang_code"
          ],
          "key_length": "10",
          "ref": [
            "const",
            "const"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 1,
          "filtered": "100.00",
          "cost_info": {
            "read_cost": "0.00",
            "eval_cost": "0.20",
            "prefix_cost": "0.00",
            "data_read_per_join": "3K"
          },
          "used_columns": [
            "company_id",
            "lang_code",
            "company_description",
            "terms",
            "meta_keywords",
            "meta_description",
            "page_title",
            "i18n_company",
            "i18n_address",
            "i18n_city"
          ]
        }
      },
      {
        "table": {
          "table_name": "cscart_vendor_plan_descriptions",
          "access_type": "const",
          "possible_keys": [
            "PRIMARY"
          ],
          "key": "PRIMARY",
          "used_key_parts": [
            "plan_id",
            "lang_code"
          ],
          "key_length": "10",
          "ref": [
            "const",
            "const"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 1,
          "filtered": "100.00",
          "cost_info": {
            "read_cost": "0.00",
            "eval_cost": "0.20",
            "prefix_cost": "0.00",
            "data_read_per_join": "792"
          },
          "used_columns": [
            "plan_id",
            "lang_code",
            "plan"
          ]
        }
      },
      {
        "table": {
          "table_name": "cscart_seo_names",
          "access_type": "ref",
          "possible_keys": [
            "PRIMARY",
            "dispatch"
          ],
          "key": "PRIMARY",
          "used_key_parts": [
            "object_id",
            "type",
            "dispatch",
            "lang_code"
          ],
          "key_length": "206",
          "ref": [
            "const",
            "const",
            "const",
            "const"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 1,
          "filtered": "100.00",
          "cost_info": {
            "read_cost": "1.00",
            "eval_cost": "0.20",
            "prefix_cost": "1.20",
            "data_read_per_join": "1K"
          },
          "used_columns": [
            "name",
            "object_id",
            "type",
            "dispatch",
            "path",
            "lang_code"
          ]
        }
      },
      {
        "table": {
          "table_name": "cscart_discussion",
          "access_type": "const",
          "possible_keys": [
            "object_id"
          ],
          "key": "object_id",
          "used_key_parts": [
            "object_id",
            "object_type"
          ],
          "key_length": "6",
          "ref": [
            "const",
            "const"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 1,
          "filtered": "100.00",
          "using_index": true,
          "cost_info": {
            "read_cost": "1.00",
            "eval_cost": "0.20",
            "prefix_cost": "2.40",
            "data_read_per_join": "24"
          },
          "used_columns": [
            "thread_id",
            "object_id",
            "object_type"
          ]
        }
      },
      {
        "table": {
          "table_name": "cscart_discussion_posts",
          "access_type": "ref",
          "possible_keys": [
            "thread_id",
            "thread_id_2"
          ],
          "key": "thread_id_2",
          "used_key_parts": [
            "thread_id",
            "status"
          ],
          "key_length": "6",
          "ref": [
            "webmarco.cscart_discussion.thread_id",
            "const"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 1,
          "filtered": "100.00",
          "using_index": true,
          "cost_info": {
            "read_cost": "1.00",
            "eval_cost": "0.24",
            "prefix_cost": "3.64",
            "data_read_per_join": "532"
          },
          "used_columns": [
            "post_id",
            "thread_id",
            "status"
          ]
        }
      },
      {
        "table": {
          "table_name": "cscart_discussion_rating",
          "access_type": "eq_ref",
          "possible_keys": [
            "PRIMARY",
            "thread_id"
          ],
          "key": "PRIMARY",
          "used_key_parts": [
            "post_id"
          ],
          "key_length": "3",
          "ref": [
            "webmarco.cscart_discussion_posts.post_id"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 1,
          "filtered": "100.00",
          "cost_info": {
            "read_cost": "1.19",
            "eval_cost": "0.24",
            "prefix_cost": "5.06",
            "data_read_per_join": "19"
          },
          "used_columns": [
            "rating_value",
            "post_id",
            "thread_id"
          ],
          "attached_condition": "<if>(is_not_null_compl(cscart_discussion_rating), (`webmarco`.`cscart_discussion_rating`.`thread_id` = `webmarco`.`cscart_discussion`.`thread_id`), true)"
        }
      }
    ]
  }
}

Result

company_id lang_code company_description terms meta_keywords meta_description page_title i18n_company i18n_address i18n_city status company address city state country zipcode email phone url storefront secure_storefront entry_page redirect_customer countries_list timestamp shippings logos request_user_id request_account_name request_account_data pre_moderation pre_moderation_edit pre_moderation_edit_vendors plan_id sd_vendor_helper identifier_facebook_pixel stripe_connect_account_id tax_number facebook_pixel_id facebook_api_token handling_time_us handling_time_uk handling_time_it handling_time_in handling_time_mx handling_time_es handling_time_de handling_time_fr handling_time_cn handling_time_ca handling_time_jp handling_time blocked_date booking_data stripe_connect_account_type registered_from_storefront_id ec_rfq_whatsapp_number ec_rfq_phone_number ec_rfq_bhf ec_rfq_bht sd_ga_tracking_code sd_ga_api_secret plan seo_name seo_path average_rating company_thread_ids
519 sq <p>Përkushtim-Profesionalizëm-Seriozitet </p> <p>Qendra e Mësimdhënies "Horizont " me eksperiencë disa vjeçare në </p> <p>fushën e mësimdhënies, me staf të kualikuar akademik dhe ambjente komode organizon kurset e gjuhëve: shqip, italisht, spanjisht, anglisht, gjermanisht, frengjisht si dhe kurse të lëndëve shkollore shkencore të matematikës dhe fizikës (klasa II-XII). Kurset e gjuhëve janë të ndërtuara sipas metodikave më të fundit bashkëkohore duke respektuar normat dhe rregullat bazë gjuhësore. Kurset zhvillohen sipas moshave dhe niveleve. Në fund të çdo kursi pajiseni me çertikatën sipas nivelit përkatës.</p> school, web, webmarco, experience, subject, math, physics, english, french, german, spanish, certificate, level, methodical, language, teaching, horizon, seo, math, physic, learing center, learning course, school subject course, qendraekursevehorizont.com "Horizont" Learning Center with several years of experience in field of teaching, with qualified academic staff and comfortable environment organizes language courses: Albanian, Italian, Spanish, English, German, French as well as school courses Horizont Learning Center-NOT JUST WORDS! Qëndra e Mësimdhënies "Horizont" Rr.Fuat Toptani , Nr.200 Tirana A Qëndra e Mësimdhënies "Horizont" Rr.Fuat Toptani , Nr.200 Tirana AL-11 AL ema_musollari@libero.it 0693588212 https://qendraekursevehorizont.com/? none Y 1644413236 0 N N N 13 262055146 0 0 0 0 0 0 0 0 0 0 0 0 Vat Excluded 12.20 qendra-e-mesimdhenies-horizont 519_0