SELECT 
  product_review_id 
FROM 
  cscart_multi_decproduct_reviews 
  LEFT JOIN cscart_multi_decusers ON cscart_multi_decproduct_reviews.reply_user_id = cscart_multi_decusers.user_id 
  LEFT JOIN cscart_multi_deccompanies ON cscart_multi_decusers.company_id = cscart_multi_deccompanies.company_id 
  LEFT JOIN cscart_multi_deccountry_descriptions ON cscart_multi_decproduct_reviews.country_code = cscart_multi_deccountry_descriptions.code 
  AND cscart_multi_deccountry_descriptions.lang_code = 'ru' 
WHERE 
  1 
  AND cscart_multi_decproduct_reviews.product_id IN (132) 
  AND cscart_multi_decproduct_reviews.status = 'A' 
GROUP BY 
  cscart_multi_decproduct_reviews.product_review_id

Query time 0.00056

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "1.56"
    },
    "grouping_operation": {
      "using_temporary_table": true,
      "using_filesort": true,
      "nested_loop": [
        {
          "table": {
            "table_name": "cscart_multi_decproduct_reviews",
            "access_type": "ref",
            "possible_keys": [
              "PRIMARY",
              "idx_product_id"
            ],
            "key": "idx_product_id",
            "used_key_parts": [
              "product_id"
            ],
            "key_length": "3",
            "ref": [
              "const"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 0,
            "filtered": "10.00",
            "index_condition": "(`vishalecarter_multi_dec`.`cscart_multi_decproduct_reviews`.`product_id` <=> 132)",
            "cost_info": {
              "read_cost": "1.00",
              "eval_cost": "0.02",
              "prefix_cost": "1.20",
              "data_read_per_join": "167"
            },
            "used_columns": [
              "product_review_id",
              "product_id",
              "country_code",
              "reply_user_id",
              "status"
            ],
            "attached_condition": "(`vishalecarter_multi_dec`.`cscart_multi_decproduct_reviews`.`status` = 'A')"
          }
        },
        {
          "table": {
            "table_name": "cscart_multi_decusers",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "user_id"
            ],
            "key_length": "3",
            "ref": [
              "vishalecarter_multi_dec.cscart_multi_decproduct_reviews.reply_user_id"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 0,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "0.10",
              "eval_cost": "0.02",
              "prefix_cost": "1.32",
              "data_read_per_join": "658"
            },
            "used_columns": [
              "user_id",
              "company_id"
            ]
          }
        },
        {
          "table": {
            "table_name": "cscart_multi_deccompanies",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "company_id"
            ],
            "key_length": "4",
            "ref": [
              "vishalecarter_multi_dec.cscart_multi_decusers.company_id"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 0,
            "filtered": "100.00",
            "using_index": true,
            "cost_info": {
              "read_cost": "0.10",
              "eval_cost": "0.02",
              "prefix_cost": "1.44",
              "data_read_per_join": "713"
            },
            "used_columns": [
              "company_id"
            ]
          }
        },
        {
          "table": {
            "table_name": "cscart_multi_deccountry_descriptions",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "code",
              "lang_code"
            ],
            "key_length": "12",
            "ref": [
              "vishalecarter_multi_dec.cscart_multi_decproduct_reviews.country_code",
              "const"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 0,
            "filtered": "100.00",
            "using_index": true,
            "cost_info": {
              "read_cost": "0.10",
              "eval_cost": "0.02",
              "prefix_cost": "1.56",
              "data_read_per_join": "40"
            },
            "used_columns": [
              "code",
              "lang_code"
            ]
          }
        }
      ]
    }
  }
}