SELECT 
  SQL_CALC_FOUND_ROWS (
    CASE WHEN products.parent_product_id <> 0 THEN products.parent_product_id ELSE products.product_id END
  ) AS product_id, 
  IF(
    shared_descr.product_id IS NOT NULL, 
    shared_descr.product, descr1.product
  ) as product, 
  companies.company as company_name, 
  GROUP_CONCAT(
    products.product_id 
    ORDER BY 
      products.parent_product_id ASC, 
      products.product_id ASC
  ) AS product_ids, 
  GROUP_CONCAT(
    products.product_type 
    ORDER BY 
      products.parent_product_id ASC, 
      products.product_id ASC
  ) AS product_types, 
  GROUP_CONCAT(
    products.parent_product_id 
    ORDER BY 
      products.parent_product_id ASC, 
      products.product_id ASC
  ) AS parent_product_ids, 
  products.product_type, 
  products.parent_product_id 
FROM 
  cscart_products as products 
  LEFT JOIN cscart_product_features_values as var_val_18 ON var_val_18.product_id = products.product_id 
  AND var_val_18.lang_code = 'en' 
  AND var_val_18.feature_id = 18 
  LEFT JOIN cscart_product_descriptions as descr1 ON descr1.product_id = products.product_id 
  AND descr1.lang_code = 'en' 
  LEFT JOIN cscart_product_prices as prices ON prices.product_id = products.product_id 
  AND prices.lower_limit = 1 
  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 = 'en' 
WHERE 
  1 
  AND (
    var_val_18.variant_id IN (1202)
  ) 
  AND cscart_categories.category_id IN (274) 
  AND companies.status IN ('A') 
  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 prices.usergroup_id IN (0, 0, 1) 
GROUP BY 
  product_id 
ORDER BY 
  product asc, 
  products.product_id ASC 
LIMIT 
  0, 96

Query time 0.00839

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "112.98"
    },
    "ordering_operation": {
      "using_filesort": true,
      "grouping_operation": {
        "using_temporary_table": true,
        "using_filesort": true,
        "buffer_result": {
          "using_temporary_table": true,
          "nested_loop": [
            {
              "table": {
                "table_name": "cscart_categories",
                "access_type": "const",
                "possible_keys": [
                  "PRIMARY",
                  "c_status",
                  "p_category_id"
                ],
                "key": "PRIMARY",
                "used_key_parts": [
                  "category_id"
                ],
                "key_length": "3",
                "ref": [
                  "const"
                ],
                "rows_examined_per_scan": 1,
                "rows_produced_per_join": 1,
                "filtered": "100.00",
                "cost_info": {
                  "read_cost": "0.00",
                  "eval_cost": "0.10",
                  "prefix_cost": "0.00",
                  "data_read_per_join": "4K"
                },
                "used_columns": [
                  "category_id",
                  "storefront_id",
                  "usergroup_ids",
                  "status"
                ]
              }
            },
            {
              "table": {
                "table_name": "companies",
                "access_type": "ALL",
                "possible_keys": [
                  "PRIMARY"
                ],
                "rows_examined_per_scan": 2,
                "rows_produced_per_join": 1,
                "filtered": "50.00",
                "cost_info": {
                  "read_cost": "0.62",
                  "eval_cost": "0.10",
                  "prefix_cost": "0.72",
                  "data_read_per_join": "5K"
                },
                "used_columns": [
                  "company_id",
                  "status",
                  "company"
                ],
                "attached_condition": "(`gaseus`.`companies`.`status` = 'A')"
              }
            },
            {
              "table": {
                "table_name": "products_categories",
                "access_type": "ref",
                "possible_keys": [
                  "PRIMARY",
                  "pt"
                ],
                "key": "PRIMARY",
                "used_key_parts": [
                  "category_id"
                ],
                "key_length": "3",
                "ref": [
                  "const"
                ],
                "rows_examined_per_scan": 179,
                "rows_produced_per_join": 179,
                "filtered": "100.00",
                "using_index": true,
                "cost_info": {
                  "read_cost": "1.36",
                  "eval_cost": "17.90",
                  "prefix_cost": "19.99",
                  "data_read_per_join": "2K"
                },
                "used_columns": [
                  "product_id",
                  "category_id"
                ]
              }
            },
            {
              "table": {
                "table_name": "products",
                "access_type": "eq_ref",
                "possible_keys": [
                  "PRIMARY",
                  "status"
                ],
                "key": "PRIMARY",
                "used_key_parts": [
                  "product_id"
                ],
                "key_length": "3",
                "ref": [
                  "gaseus.products_categories.product_id"
                ],
                "rows_examined_per_scan": 1,
                "rows_produced_per_join": 17,
                "filtered": "10.00",
                "cost_info": {
                  "read_cost": "44.75",
                  "eval_cost": "1.79",
                  "prefix_cost": "82.64",
                  "data_read_per_join": "116K"
                },
                "used_columns": [
                  "product_id",
                  "product_type",
                  "status",
                  "company_id",
                  "usergroup_ids",
                  "parent_product_id"
                ],
                "attached_condition": "((`gaseus`.`products`.`company_id` = `gaseus`.`companies`.`company_id`) and ((`gaseus`.`products`.`usergroup_ids` = '') or (0 <> find_in_set(0,`gaseus`.`products`.`usergroup_ids`)) or (0 <> find_in_set(1,`gaseus`.`products`.`usergroup_ids`))) and (`gaseus`.`products`.`status` = 'A'))"
              }
            },
            {
              "table": {
                "table_name": "prices",
                "access_type": "ref",
                "possible_keys": [
                  "usergroup",
                  "product_id",
                  "lower_limit",
                  "usergroup_id"
                ],
                "key": "usergroup",
                "used_key_parts": [
                  "product_id"
                ],
                "key_length": "3",
                "ref": [
                  "gaseus.products_categories.product_id"
                ],
                "rows_examined_per_scan": 1,
                "rows_produced_per_join": 17,
                "filtered": "99.97",
                "using_index": true,
                "cost_info": {
                  "read_cost": "4.47",
                  "eval_cost": "1.79",
                  "prefix_cost": "88.90",
                  "data_read_per_join": "429"
                },
                "used_columns": [
                  "product_id",
                  "lower_limit",
                  "usergroup_id"
                ],
                "attached_condition": "((`gaseus`.`prices`.`lower_limit` = 1) and (`gaseus`.`prices`.`usergroup_id` in (0,0,1)))"
              }
            },
            {
              "table": {
                "table_name": "var_val_18",
                "access_type": "eq_ref",
                "possible_keys": [
                  "PRIMARY",
                  "fl",
                  "variant_id",
                  "lang_code",
                  "product_id",
                  "fpl",
                  "idx_product_feature_variant_id"
                ],
                "key": "PRIMARY",
                "used_key_parts": [
                  "feature_id",
                  "product_id",
                  "variant_id",
                  "lang_code"
                ],
                "key_length": "15",
                "ref": [
                  "const",
                  "gaseus.products_categories.product_id",
                  "const",
                  "const"
                ],
                "rows_examined_per_scan": 1,
                "rows_produced_per_join": 17,
                "filtered": "100.00",
                "using_index": true,
                "cost_info": {
                  "read_cost": "4.47",
                  "eval_cost": "1.79",
                  "prefix_cost": "95.16",
                  "data_read_per_join": "13K"
                },
                "used_columns": [
                  "feature_id",
                  "product_id",
                  "variant_id",
                  "lang_code"
                ]
              }
            },
            {
              "table": {
                "table_name": "shared_descr",
                "access_type": "eq_ref",
                "possible_keys": [
                  "PRIMARY",
                  "product_id",
                  "company_id"
                ],
                "key": "PRIMARY",
                "used_key_parts": [
                  "product_id",
                  "lang_code",
                  "company_id"
                ],
                "key_length": "13",
                "ref": [
                  "gaseus.products_categories.product_id",
                  "const",
                  "const"
                ],
                "rows_examined_per_scan": 1,
                "rows_produced_per_join": 17,
                "filtered": "100.00",
                "cost_info": {
                  "read_cost": "5.26",
                  "eval_cost": "1.79",
                  "prefix_cost": "102.21",
                  "data_read_per_join": "68K"
                },
                "used_columns": [
                  "product_id",
                  "lang_code",
                  "company_id",
                  "product"
                ]
              }
            },
            {
              "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": [
                  "gaseus.products_categories.product_id",
                  "const"
                ],
                "rows_examined_per_scan": 1,
                "rows_produced_per_join": 17,
                "filtered": "100.00",
                "cost_info": {
                  "read_cost": "8.98",
                  "eval_cost": "1.79",
                  "prefix_cost": "112.98",
                  "data_read_per_join": "81K"
                },
                "used_columns": [
                  "product_id",
                  "lang_code",
                  "product"
                ]
              }
            }
          ]
        }
      }
    }
  }
}

Result

product_id product company_name product_ids product_types parent_product_ids product_type parent_product_id
3834 Point-of-use regulator E10F Gaseus 3834 P 0 P 0
3833 Point-of-use regulator EH40-20 Gaseus 3833 P 0 P 0
2130 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2130 P 0 P 0
2131 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2131 P 0 P 0
2132 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2132 P 0 P 0
2133 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2133 P 0 P 0
2134 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2134 P 0 P 0
2135 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2135 P 0 P 0
2136 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2136 P 0 P 0
2137 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2137 P 0 P 0
2138 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2138 P 0 P 0
2139 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2139 P 0 P 0
2140 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2140 P 0 P 0
2141 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2141 P 0 P 0
2142 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2142 P 0 P 0
2143 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2143 P 0 P 0
2144 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2144 P 0 P 0
2145 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2145 P 0 P 0
2146 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2146 P 0 P 0
2147 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2147 P 0 P 0
2148 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2148 P 0 P 0
2149 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2149 P 0 P 0
2150 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2150 P 0 P 0
2151 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2151 P 0 P 0
2152 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2152 P 0 P 0
2153 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2153 P 0 P 0
2154 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2154 P 0 P 0
2155 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2155 P 0 P 0
2156 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2156 P 0 P 0
2157 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2157 P 0 P 0
2158 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2158 P 0 P 0
2159 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2159 P 0 P 0
2160 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2160 P 0 P 0
2161 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2161 P 0 P 0
2162 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2162 P 0 P 0
2163 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2163 P 0 P 0
2164 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2164 P 0 P 0
2165 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2165 P 0 P 0
2166 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2166 P 0 P 0
2167 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2167 P 0 P 0
2168 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2168 P 0 P 0
2169 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2169 P 0 P 0
2170 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2170 P 0 P 0
2171 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2171 P 0 P 0
2172 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2172 P 0 P 0
2173 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2173 P 0 P 0
2174 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2174 P 0 P 0
2175 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2175 P 0 P 0
2176 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2176 P 0 P 0
2177 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2177 P 0 P 0
2178 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2178 P 0 P 0
2179 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2179 P 0 P 0
2180 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2180 P 0 P 0
2181 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2181 P 0 P 0
2182 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2182 P 0 P 0
2183 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2183 P 0 P 0
2184 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 2184 P 0 P 0
3779 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3779 P 0 P 0
3780 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3780 P 0 P 0
3781 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3781 P 0 P 0
3782 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3782 P 0 P 0
3783 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3783 P 0 P 0
3784 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3784 P 0 P 0
3785 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3785 P 0 P 0
3786 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3786 P 0 P 0
3787 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3787 P 0 P 0
3788 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3788 P 0 P 0
3789 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3789 P 0 P 0
3790 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3790 P 0 P 0
3791 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3791 P 0 P 0
3792 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3792 P 0 P 0
3793 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3793 P 0 P 0
3794 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3794 P 0 P 0
3795 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3795 P 0 P 0
3796 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3796 P 0 P 0
3797 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3797 P 0 P 0
3798 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3798 P 0 P 0
3799 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3799 P 0 P 0
3800 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3800 P 0 P 0
3801 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3801 P 0 P 0
3802 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3802 P 0 P 0
3803 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3803 P 0 P 0
3804 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3804 P 0 P 0
3805 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3805 P 0 P 0
3806 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3806 P 0 P 0
3807 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3807 P 0 P 0
3808 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3808 P 0 P 0
3809 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3809 P 0 P 0
3810 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3810 P 0 P 0
3811 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3811 P 0 P 0
3812 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3812 P 0 P 0
3813 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3813 P 0 P 0
3814 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3814 P 0 P 0
3815 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3815 P 0 P 0
3816 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3816 P 0 P 0
3817 Point-of-use regulator EH40-20 Oxygen 0,5 - 20 bar Gaseus 3817 P 0 P 0