SELECT 
  COUNT(*) 
FROM 
  cscart_promotions 
  LEFT JOIN cscart_promotion_descriptions ON cscart_promotion_descriptions.promotion_id = cscart_promotions.promotion_id 
  AND cscart_promotion_descriptions.lang_code = 'kk' 
  LEFT JOIN cscart_storefronts_promotions AS storefronts_promotions ON storefronts_promotions.promotion_id = cscart_promotions.promotion_id 
  LEFT JOIN cscart_promotion_images ON cscart_promotion_images.promotion_id = cscart_promotions.promotion_id 
  AND cscart_promotion_images.lang_code = 'kk' 
WHERE 
  1 
  AND status IN ('A') 
  AND (
    storefronts_promotions.storefront_id = 1 
    OR storefronts_promotions.storefront_id IS NULL
  ) 
  AND cscart_promotions.promotion_id NOT IN (
    1, 2, 9, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14
  )

Query time 0.00190

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "5.53"
    },
    "nested_loop": [
      {
        "table": {
          "table_name": "cscart_promotion_images",
          "access_type": "system",
          "possible_keys": [
            "promo"
          ],
          "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": "16"
          },
          "used_columns": [
            "promotion_id",
            "lang_code"
          ]
        }
      },
      {
        "table": {
          "table_name": "cscart_promotions",
          "access_type": "ALL",
          "possible_keys": [
            "PRIMARY"
          ],
          "rows_examined_per_scan": 18,
          "rows_produced_per_join": 1,
          "filtered": "10.00",
          "cost_info": {
            "read_cost": "2.82",
            "eval_cost": "0.18",
            "prefix_cost": "3.00",
            "data_read_per_join": "144"
          },
          "used_columns": [
            "promotion_id",
            "status"
          ],
          "attached_condition": "((`test_uchur_k`.`cscart_promotions`.`status` = 'A') and (`test_uchur_k`.`cscart_promotions`.`promotion_id` not in (1,2,9,3,4,5,6,7,8,10,11,12,13,14)))"
        }
      },
      {
        "table": {
          "table_name": "cscart_promotion_descriptions",
          "access_type": "eq_ref",
          "possible_keys": [
            "PRIMARY"
          ],
          "key": "PRIMARY",
          "used_key_parts": [
            "promotion_id",
            "lang_code"
          ],
          "key_length": "9",
          "ref": [
            "test_uchur_k.cscart_promotions.promotion_id",
            "const"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 1,
          "filtered": "100.00",
          "using_index": true,
          "cost_info": {
            "read_cost": "0.00",
            "eval_cost": "0.18",
            "prefix_cost": "3.18",
            "data_read_per_join": "1K"
          },
          "used_columns": [
            "promotion_id",
            "lang_code"
          ]
        }
      },
      {
        "table": {
          "table_name": "storefronts_promotions",
          "access_type": "index",
          "key": "PRIMARY",
          "used_key_parts": [
            "storefront_id",
            "promotion_id"
          ],
          "key_length": "8",
          "rows_examined_per_scan": 16,
          "rows_produced_per_join": 5,
          "filtered": "19.00",
          "using_index": true,
          "using_join_buffer": "hash join",
          "cost_info": {
            "read_cost": "1.80",
            "eval_cost": "0.55",
            "prefix_cost": "5.54",
            "data_read_per_join": "87"
          },
          "used_columns": [
            "storefront_id",
            "promotion_id"
          ],
          "attached_condition": "(<if>(found_match(storefronts_promotions), ((`test_uchur_k`.`storefronts_promotions`.`storefront_id` = 1) or (`test_uchur_k`.`storefronts_promotions`.`storefront_id` is null)), true) and <if>(is_not_null_compl(storefronts_promotions), (`test_uchur_k`.`storefronts_promotions`.`promotion_id` = `test_uchur_k`.`cscart_promotions`.`promotion_id`), true))"
        }
      }
    ]
  }
}