SELECT 
  company_descriptions.*, 
  companies.*, 
  vendor_plan_descriptions.plan, 
  seo_names.name as seo_name, 
  seo_names.path as seo_path, 
  vendor_ga_tracking_code, 
  vendor_fb_tracking_code, 
  AVG(discussion_rating.rating_value) AS average_rating, 
  CONCAT(
    companies.company_id, 
    '_', 
    IF (
      discussion_rating.thread_id, discussion_rating.thread_id, 
      '0'
    )
  ) AS company_thread_ids 
FROM 
  companies AS companies 
  LEFT JOIN company_descriptions AS company_descriptions ON company_descriptions.company_id = companies.company_id 
  AND company_descriptions.lang_code = 'en' 
  LEFT JOIN vendor_plan_descriptions ON companies.plan_id = vendor_plan_descriptions.plan_id 
  AND vendor_plan_descriptions.lang_code = 'en' 
  LEFT JOIN seo_names ON seo_names.object_id = 3416 
  AND seo_names.type = 'm' 
  AND seo_names.dispatch = '' 
  AND seo_names.lang_code = 'en' 
  LEFT JOIN discussion as discussionA ON discussionA.object_id = companies.company_id 
  AND discussionA.object_type = 'M' 
  LEFT JOIN discussion_posts ON discussion_posts.thread_id = discussionA.thread_id 
  AND discussion_posts.status = 'A' 
  LEFT JOIN discussion_rating ON discussionA.thread_id = discussion_rating.thread_id 
  AND discussion_rating.post_id = discussion_posts.post_id 
WHERE 
  companies.company_id = 3416

Query time 0.00100

JSON explain

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  "query_block": {
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    "nested_loop": [
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            "company",
            "lang_code",
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            "city",
            "state",
            "country",
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            "email",
            "phone",
            "url",
            "storefront",
            "secure_storefront",
            "entry_page",
            "redirect_customer",
            "countries_list",
            "timestamp",
            "shippings",
            "logos",
            "request_user_id",
            "request_account_name",
            "request_account_data",
            "plan_id",
            "stripe_connect_account_id",
            "identifier_facebook_pixel",
            "featured_products",
            "sd_ga_tracking_code",
            "paypal_commerce_platform_account_id",
            "tagline",
            "url_facebook",
            "url_instagram",
            "url_twitter",
            "url_pinterest",
            "announcement",
            "shippo_api_token",
            "shippo_carrier",
            "shippo_service_type",
            "vendor_ga_tracking_code",
            "vendor_fb_tracking_code",
            "custom_domain",
            "custom_domain_status",
            "taxjar_key",
            "taxjar_export_statuses",
            "taxjar_export_csv_data",
            "ag_hide_city",
            "updated_timestamp",
            "suspend_date",
            "grace_period_start",
            "last_time_suspended",
            "last_debt_notification_time",
            "tax_number",
            "stripe_connect_account_type",
            "registered_from_storefront_id"
          ]
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      },
      {
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          },
          "used_columns": [
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            "lang_code",
            "company_description",
            "terms",
            "subdomain_colors",
            "i18n_company",
            "i18n_address",
            "i18n_city"
          ]
        }
      },
      {
        "table": {
          "table_name": "vendor_plan_descriptions",
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          },
          "used_columns": [
            "plan_id",
            "lang_code",
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          ]
        }
      },
      {
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          "table_name": "seo_names",
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          ],
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          "used_key_parts": [
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          ],
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            "path",
            "lang_code"
          ]
        }
      },
      {
        "table": {
          "table_name": "discussionA",
          "access_type": "const",
          "possible_keys": [
            "object_id"
          ],
          "key": "object_id",
          "used_key_parts": [
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            "object_id",
            "object_type"
          ]
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      {
        "table": {
          "table_name": "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": [
            "goimagine.discussionA.thread_id",
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          ],
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          },
          "used_columns": [
            "post_id",
            "thread_id",
            "status"
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      },
      {
        "table": {
          "table_name": "discussion_rating",
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            "PRIMARY",
            "thread_id"
          ],
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          "key_length": "3",
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          "used_columns": [
            "rating_value",
            "post_id",
            "thread_id"
          ],
          "attached_condition": "<if>(is_not_null_compl(discussion_rating), (`goimagine`.`discussion_rating`.`thread_id` = `goimagine`.`discussionA`.`thread_id`), true)"
        }
      }
    ]
  }
}

Result

company_id lang_code company_description terms subdomain_colors 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 plan_id stripe_connect_account_id identifier_facebook_pixel featured_products sd_ga_tracking_code paypal_commerce_platform_account_id tagline url_facebook url_instagram url_twitter url_pinterest announcement shippo_api_token shippo_carrier shippo_service_type vendor_ga_tracking_code vendor_fb_tracking_code custom_domain custom_domain_status taxjar_key taxjar_export_statuses taxjar_export_csv_data ag_hide_city updated_timestamp suspend_date grace_period_start last_time_suspended last_debt_notification_time tax_number stripe_connect_account_type registered_from_storefront_id plan seo_name seo_path average_rating company_thread_ids
3416 en <p>Life threw me for a loop at a young age when I was diagnosed with cancer at the age of four. However, this did not stop me! I am many years older and building a great life full of many different experiences.&nbsp;</p> <p>I have had many dreams, passions, and goals in life. Some that did not work and others that did. I was a teacher for many years. I worked with children from the age of 2 months old to second graders. I have enjoyed teaching them and loved watching the little ones grow and learn.&nbsp;</p> <p>But, now I have started a new chapter in my book of life. I recently had my first baby and I am growing my love of crafting into a business, with a big push from my husband. I get to live my dream by working from home and take care of my little one. YAY!</p> <p>Current items that I make include laser cut and/or engraved earrings, keychains, magnets, cake and cupcake toppers, coasters, cutting boards, Seasonal decor, and more.</p> <p><strong>Processing time</strong></p> <p>The time I need to prepare orders for shipping varies. Smaller/Less detailed items will take 3-5 business days to process. Larger and more detailed items will take anywhere from 5-14 business days to process. *Weekends not included in processing time* For more processing details, see individual items.</p> <h6>I accept returns and exchanges on items that are damaged during shipping *A picture upon receiving a damaged item will be needed for verification*&nbsp;</h6> <p>Contact me within: 7 days of delivery&nbsp;*Weekends not included*<br>Ship items back within: 14 days of delivery&nbsp;*Weekends not included*</p> <h6>I DO NOT accept cancellations</h6> <p>But please contact me if you have any problems with your order.</p> <h6>The following items can't be returned or exchanged</h6> <p>Because of the nature of these items, unless they arrive damaged or defective,&nbsp;<b>*A picture upon receiving a damaged item will be needed for verification*&nbsp;</b> I cannot accept returns for:</p> <ul><li>Custom or personalized orders</li><li>Items on sale</li></ul> <p><strong>Conditions of Return</strong></p> <p>Buyers are responsible for return shipping costs. If the item is not returned in its original condition, the buyer is responsible for any loss in value.</p> <p><strong>Care Note:</strong></p> <p>Most items are made from wood. Due to the nature of wood here are some recommended care instructions:</p> <ul><li>Wearable Items - Should not be worn while showering or swimming.</li><li>Small Items like keychains and magnets - should not be submerged or left in water.</li><li>Wipe items clean with damp towel and dry right away</li><li>Cutting board care will be sent with cutting boards</li></ul> <p>*Items are sealed with a clear coat but should still be handled with care</p> <p><strong>Earring Note:&nbsp;</strong></p> <p>Some earrings are made with a patterned wood. Due to the variation in the pattern on the wood the earring sets may look different from the ones pictured. </p> <p><br></p> {"tmenu_style":"V","default_colors":"N","link_color":"#05cccc","label_color":"#05cccc","icon_color":"#05cccc","main_btn_color":"#05cccc","branded_text_color":"#05cccc","vbp_1_url":"","vbp_2_url":"","vbp_3_url":"","vba_1_url":"","vba_2_url":"","vba_3_url":""} Rustic Frog Creations 1298 W 600 N BLACKFOOT A Rustic Frog Creations 1298 W 600 N BLACKFOOT ID US 83221 froggyjaffa@msn.com none Y 1629391999 0 4 acct_1DJ8RLDch0uvUCg8 FZADQ3QCTGR2N Custom and creative laser made designs! https://www.facebook.com/rusticfrogcreations https://www.instagram.com/rusticfrogcreations/ A N 0 0 0 0 0 S All-Star Plan rusticfrogcreations 3416_0