SELECT 
  SQL_CALC_FOUND_ROWS products.product_id, 
  products.amount, 
  IF(
    shared_descr.product_id IS NOT NULL, 
    shared_descr.product, descr1.product
  ) as product, 
  companies.company as company_name, 
  variation_group_products.group_id AS variation_group_id, 
  products.product_type, 
  products.parent_product_id 
FROM 
  cscart_products as products 
  LEFT JOIN cscart_product_descriptions as descr1 ON descr1.product_id = products.product_id 
  AND descr1.lang_code = 'ru' 
  LEFT JOIN cscart_companies AS companies ON companies.company_id = products.company_id 
  INNER JOIN cscart_products_categories as products_categories ON products_categories.product_id = products.product_id 
  INNER JOIN cscart_categories ON cscart_categories.category_id = products_categories.category_id 
  AND (
    cscart_categories.usergroup_ids = '' 
    OR FIND_IN_SET(
      0, cscart_categories.usergroup_ids
    ) 
    OR FIND_IN_SET(
      1, cscart_categories.usergroup_ids
    )
  ) 
  AND cscart_categories.status IN ('A', 'H') 
  AND cscart_categories.storefront_id IN (0, 1) 
  LEFT JOIN cscart_ult_product_descriptions shared_descr ON shared_descr.product_id = products.product_id 
  AND shared_descr.company_id = 1 
  AND shared_descr.lang_code = 'ru' 
  LEFT JOIN cscart_images_links as img_links ON img_links.object_id = products.product_id 
  AND img_links.object_type = 'product' 
  AND img_links.type = 'M' 
  LEFT JOIN cscart_warehouses_sum_products_amount as war_sum_amount ON war_sum_amount.product_id = products.product_id 
  LEFT JOIN cscart_warehouses_destination_products_amount AS warehouses_destination_products_amount ON warehouses_destination_products_amount.product_id = products.product_id 
  AND warehouses_destination_products_amount.destination_id = 116 
  AND warehouses_destination_products_amount.storefront_id = 1 
  INNER JOIN cscart_product_variation_group_products AS variation_group_products ON variation_group_products.product_id = products.product_id 
WHERE 
  1 
  AND companies.status IN ('A') 
  AND (
    (
      CASE products.is_stock_split_by_warehouses WHEN 'Y' THEN warehouses_destination_products_amount.amount ELSE products.amount END
    ) > 0 
    OR products.tracking = 'D'
  ) 
  AND (
    products.usergroup_ids = '' 
    OR FIND_IN_SET(0, products.usergroup_ids) 
    OR FIND_IN_SET(1, products.usergroup_ids)
  ) 
  AND products.status IN ('A') 
  AND products.company_id != 2 
  AND img_links.pair_id > 0 
  AND variation_group_products.group_id IN (
    260, 
    258, 
    257, 
    190, 
    192, 
    259, 
    191, 
    194, 
    195, 
    255, 
    256, 
    140, 
    125, 
    139, 
    126, 
    128, 
    236, 
    124, 
    127, 
    254, 
    102, 
    143, 
    214, 
    204, 
    206, 
    133, 
    132, 
    131, 
    154, 
    248, 
    184, 
    235, 
    233, 
    187, 
    138, 
    189, 
    243, 
    134, 
    234, 
    142, 
    137, 
    150, 
    188, 
    183, 
    198, 
    35, 
    186, 
    185, 
    149, 
    205, 
    136, 
    237, 
    135, 
    123, 
    122, 
    180, 
    208, 
    224, 
    207, 
    218, 
    176, 
    181, 
    175, 
    223, 
    212, 
    174, 
    177, 
    217, 
    170, 
    211, 
    173, 
    216, 
    219, 
    167, 
    166, 
    210, 
    193, 
    148, 
    144, 
    156, 
    161, 
    165, 
    129, 
    158, 
    182, 
    160, 
    162, 
    159, 
    244, 
    164, 
    215, 
    157, 
    130, 
    145, 
    141, 
    220, 
    155, 
    213, 
    146, 
    147, 
    153, 
    179, 
    225, 
    228, 
    227, 
    168, 
    221, 
    171, 
    151, 
    152, 
    172, 
    226, 
    163, 
    209, 
    222, 
    178, 
    197, 
    230, 
    199, 
    196, 
    252, 
    240, 
    200, 
    201, 
    203, 
    241, 
    239
  ) 
GROUP BY 
  products.product_id 
ORDER BY 
  NULL asc

Query time 0.03362

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "202.55"
    },
    "ordering_operation": {
      "using_filesort": false,
      "grouping_operation": {
        "using_temporary_table": true,
        "using_filesort": false,
        "nested_loop": [
          {
            "table": {
              "table_name": "shared_descr",
              "access_type": "system",
              "possible_keys": [
                "PRIMARY",
                "product_id",
                "company_id"
              ],
              "rows_examined_per_scan": 0,
              "rows_produced_per_join": 1,
              "filtered": "0.00",
              "const_row_not_found": true,
              "cost_info": {
                "read_cost": "0.00",
                "eval_cost": "0.10",
                "prefix_cost": "0.00",
                "data_read_per_join": "4K"
              },
              "used_columns": [
                "product_id",
                "lang_code",
                "company_id",
                "product"
              ]
            }
          },
          {
            "table": {
              "table_name": "companies",
              "access_type": "range",
              "possible_keys": [
                "PRIMARY"
              ],
              "key": "PRIMARY",
              "used_key_parts": [
                "company_id"
              ],
              "key_length": "4",
              "rows_examined_per_scan": 2,
              "rows_produced_per_join": 1,
              "filtered": "50.00",
              "index_condition": "(`test_uchur_k`.`companies`.`company_id` <> 2)",
              "cost_info": {
                "read_cost": "1.31",
                "eval_cost": "0.10",
                "prefix_cost": "1.41",
                "data_read_per_join": "6K"
              },
              "used_columns": [
                "company_id",
                "status",
                "company"
              ],
              "attached_condition": "(`test_uchur_k`.`companies`.`status` = 'A')"
            }
          },
          {
            "table": {
              "table_name": "variation_group_products",
              "access_type": "index",
              "possible_keys": [
                "PRIMARY",
                "idx_group_id"
              ],
              "key": "PRIMARY",
              "used_key_parts": [
                "product_id",
                "group_id"
              ],
              "key_length": "6",
              "rows_examined_per_scan": 501,
              "rows_produced_per_join": 468,
              "filtered": "93.41",
              "using_index": true,
              "using_join_buffer": "hash join",
              "cost_info": {
                "read_cost": "4.12",
                "eval_cost": "46.80",
                "prefix_cost": "52.33",
                "data_read_per_join": "7K"
              },
              "used_columns": [
                "product_id",
                "group_id"
              ],
              "attached_condition": "(`test_uchur_k`.`variation_group_products`.`group_id` in (260,258,257,190,192,259,191,194,195,255,256,140,125,139,126,128,236,124,127,254,102,143,214,204,206,133,132,131,154,248,184,235,233,187,138,189,243,134,234,142,137,150,188,183,198,35,186,185,149,205,136,237,135,123,122,180,208,224,207,218,176,181,175,223,212,174,177,217,170,211,173,216,219,167,166,210,193,148,144,156,161,165,129,158,182,160,162,159,244,164,215,157,130,145,141,220,155,213,146,147,153,179,225,228,227,168,221,171,151,152,172,226,163,209,222,178,197,230,199,196,252,240,200,201,203,241,239))"
            }
          },
          {
            "table": {
              "table_name": "products",
              "access_type": "eq_ref",
              "possible_keys": [
                "PRIMARY",
                "status"
              ],
              "key": "PRIMARY",
              "used_key_parts": [
                "product_id"
              ],
              "key_length": "3",
              "ref": [
                "test_uchur_k.variation_group_products.product_id"
              ],
              "rows_examined_per_scan": 1,
              "rows_produced_per_join": 41,
              "filtered": "8.92",
              "cost_info": {
                "read_cost": "0.00",
                "eval_cost": "4.17",
                "prefix_cost": "99.13",
                "data_read_per_join": "446K"
              },
              "used_columns": [
                "product_id",
                "product_type",
                "status",
                "company_id",
                "amount",
                "usergroup_ids",
                "tracking",
                "parent_product_id",
                "is_stock_split_by_warehouses"
              ],
              "attached_condition": "((`test_uchur_k`.`products`.`company_id` = `test_uchur_k`.`companies`.`company_id`) and ((`test_uchur_k`.`products`.`usergroup_ids` = '') or (0 <> find_in_set(0,`test_uchur_k`.`products`.`usergroup_ids`)) or (0 <> find_in_set(1,`test_uchur_k`.`products`.`usergroup_ids`))) and (`test_uchur_k`.`products`.`status` = 'A'))"
            }
          },
          {
            "table": {
              "table_name": "descr1",
              "access_type": "eq_ref",
              "possible_keys": [
                "PRIMARY",
                "product_id"
              ],
              "key": "PRIMARY",
              "used_key_parts": [
                "product_id",
                "lang_code"
              ],
              "key_length": "9",
              "ref": [
                "test_uchur_k.variation_group_products.product_id",
                "const"
              ],
              "rows_examined_per_scan": 1,
              "rows_produced_per_join": 41,
              "filtered": "100.00",
              "cost_info": {
                "read_cost": "0.00",
                "eval_cost": "4.17",
                "prefix_cost": "103.30",
                "data_read_per_join": "190K"
              },
              "used_columns": [
                "product_id",
                "lang_code",
                "product"
              ]
            }
          },
          {
            "table": {
              "table_name": "products_categories",
              "access_type": "ref",
              "possible_keys": [
                "PRIMARY",
                "pt"
              ],
              "key": "pt",
              "used_key_parts": [
                "product_id"
              ],
              "key_length": "3",
              "ref": [
                "test_uchur_k.variation_group_products.product_id"
              ],
              "rows_examined_per_scan": 2,
              "rows_produced_per_join": 83,
              "filtered": "100.00",
              "cost_info": {
                "read_cost": "20.87",
                "eval_cost": "8.35",
                "prefix_cost": "132.52",
                "data_read_per_join": "1K"
              },
              "used_columns": [
                "product_id",
                "category_id"
              ]
            }
          },
          {
            "table": {
              "table_name": "cscart_categories",
              "access_type": "eq_ref",
              "possible_keys": [
                "PRIMARY",
                "c_status",
                "p_category_id"
              ],
              "key": "PRIMARY",
              "used_key_parts": [
                "category_id"
              ],
              "key_length": "3",
              "ref": [
                "test_uchur_k.products_categories.category_id"
              ],
              "rows_examined_per_scan": 1,
              "rows_produced_per_join": 4,
              "filtered": "5.00",
              "cost_info": {
                "read_cost": "0.00",
                "eval_cost": "0.42",
                "prefix_cost": "140.87",
                "data_read_per_join": "22K"
              },
              "used_columns": [
                "category_id",
                "storefront_id",
                "usergroup_ids",
                "status"
              ],
              "attached_condition": "(((`test_uchur_k`.`cscart_categories`.`usergroup_ids` = '') or (0 <> find_in_set(0,`test_uchur_k`.`cscart_categories`.`usergroup_ids`)) or (0 <> find_in_set(1,`test_uchur_k`.`cscart_categories`.`usergroup_ids`))) and (`test_uchur_k`.`cscart_categories`.`status` in ('A','H')) and (`test_uchur_k`.`cscart_categories`.`storefront_id` in (0,1)))"
            }
          },
          {
            "table": {
              "table_name": "img_links",
              "access_type": "ref",
              "possible_keys": [
                "PRIMARY",
                "object_id"
              ],
              "key": "object_id",
              "used_key_parts": [
                "object_id",
                "object_type",
                "type"
              ],
              "key_length": "81",
              "ref": [
                "test_uchur_k.variation_group_products.product_id",
                "const",
                "const"
              ],
              "rows_examined_per_scan": 4,
              "rows_produced_per_join": 16,
              "filtered": "100.00",
              "index_condition": "(`test_uchur_k`.`img_links`.`object_id` = `test_uchur_k`.`variation_group_products`.`product_id`)",
              "cost_info": {
                "read_cost": "4.17",
                "eval_cost": "1.67",
                "prefix_cost": "146.71",
                "data_read_per_join": "1K"
              },
              "used_columns": [
                "pair_id",
                "object_id",
                "object_type",
                "type"
              ],
              "attached_condition": "(`test_uchur_k`.`img_links`.`pair_id` > 0)"
            }
          },
          {
            "table": {
              "table_name": "war_sum_amount",
              "access_type": "ref",
              "possible_keys": [
                "PRIMARY"
              ],
              "key": "PRIMARY",
              "used_key_parts": [
                "product_id"
              ],
              "key_length": "3",
              "ref": [
                "test_uchur_k.variation_group_products.product_id"
              ],
              "rows_examined_per_scan": 15,
              "rows_produced_per_join": 250,
              "filtered": "100.00",
              "using_index": true,
              "cost_info": {
                "read_cost": "5.75",
                "eval_cost": "25.04",
                "prefix_cost": "177.51",
                "data_read_per_join": "3K"
              },
              "used_columns": [
                "product_id"
              ]
            }
          },
          {
            "table": {
              "table_name": "warehouses_destination_products_amount",
              "access_type": "eq_ref",
              "possible_keys": [
                "PRIMARY",
                "idx_storefront_id"
              ],
              "key": "PRIMARY",
              "used_key_parts": [
                "product_id",
                "destination_id",
                "storefront_id"
              ],
              "key_length": "9",
              "ref": [
                "test_uchur_k.variation_group_products.product_id",
                "const",
                "const"
              ],
              "rows_examined_per_scan": 1,
              "rows_produced_per_join": 250,
              "filtered": "100.00",
              "cost_info": {
                "read_cost": "0.00",
                "eval_cost": "25.04",
                "prefix_cost": "202.55",
                "data_read_per_join": "3K"
              },
              "used_columns": [
                "destination_id",
                "storefront_id",
                "product_id",
                "amount"
              ],
              "attached_condition": "<if>(found_match(warehouses_destination_products_amount), (((case `test_uchur_k`.`products`.`is_stock_split_by_warehouses` when 'Y' then `test_uchur_k`.`warehouses_destination_products_amount`.`amount` else `test_uchur_k`.`products`.`amount` end) > 0) or (`test_uchur_k`.`products`.`tracking` = 'D')), true)"
            }
          }
        ]
      }
    }
  }
}