SELECT 
  cscart_product_feature_variants.variant_id, 
  cscart_product_feature_variants.position, 
  cscart_product_feature_variants.color, 
  cscart_product_feature_variant_descriptions.variant 
FROM 
  cscart_product_feature_variants 
  LEFT JOIN cscart_product_feature_variant_descriptions ON cscart_product_feature_variants.variant_id = cscart_product_feature_variant_descriptions.variant_id 
  AND cscart_product_feature_variant_descriptions.lang_code = 'ru' 
WHERE 
  cscart_product_feature_variants.variant_id IN (
    1, 7, 58, 170, 111, 421, 422, 462, 120, 
    121, 122, 246, 123, 125, 126, 234, 147, 
    12, 467, 127, 146, 483, 475, 481, 10, 
    165, 232, 11, 237, 238, 313, 211, 149, 
    14, 476, 473, 217, 485, 124, 486, 487, 
    438, 439, 367, 8, 460, 461, 484, 478, 
    479, 472, 480, 477, 482, 469, 26, 1294, 
    1295, 1304, 263, 1296, 1335, 152, 1332, 
    1327, 1293
  ) 
ORDER BY 
  cscart_product_feature_variants.position ASC, 
  cscart_product_feature_variant_descriptions.variant ASC

Query time 0.00147

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "69.31"
    },
    "ordering_operation": {
      "using_temporary_table": true,
      "using_filesort": true,
      "nested_loop": [
        {
          "table": {
            "table_name": "cscart_product_feature_variants",
            "access_type": "range",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "variant_id"
            ],
            "key_length": "3",
            "rows_examined_per_scan": 66,
            "rows_produced_per_join": 66,
            "filtered": "100.00",
            "index_condition": "(`test_uchur_k`.`cscart_product_feature_variants`.`variant_id` in (1,7,58,170,111,421,422,462,120,121,122,246,123,125,126,234,147,12,467,127,146,483,475,481,10,165,232,11,237,238,313,211,149,14,476,473,217,485,124,486,487,438,439,367,8,460,461,484,478,479,472,480,477,482,469,26,1294,1295,1304,263,1296,1335,152,1332,1327,1293))",
            "cost_info": {
              "read_cost": "39.61",
              "eval_cost": "6.60",
              "prefix_cost": "46.21",
              "data_read_per_join": "102K"
            },
            "used_columns": [
              "variant_id",
              "color",
              "position"
            ]
          }
        },
        {
          "table": {
            "table_name": "cscart_product_feature_variant_descriptions",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "variant_id",
              "lang_code"
            ],
            "key_length": "9",
            "ref": [
              "test_uchur_k.cscart_product_feature_variants.variant_id",
              "const"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 66,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "16.50",
              "eval_cost": "6.60",
              "prefix_cost": "69.31",
              "data_read_per_join": "205K"
            },
            "used_columns": [
              "variant_id",
              "variant",
              "lang_code"
            ]
          }
        }
      ]
    }
  }
}