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 = 'en' 
WHERE 
  cscart_product_feature_variants.variant_id IN (
    2082, 2078, 2862, 2696, 3820, 3933, 4619, 
    3879, 3896, 4626, 4622, 4632, 4635, 
    3961, 4729, 4913, 8331, 8624, 1666, 
    3327, 4197, 4795, 4204, 4829, 1665, 
    6600, 9219, 2697, 2722, 2895, 3742, 
    3967, 4252, 2892, 4262, 4694, 4696, 
    4699, 4758, 4794, 4783, 4793, 8625, 
    4590, 4608, 4822, 5110, 4870, 4872, 
    3625, 3825, 4624, 4648, 4707, 4716, 
    4722
  ) 
ORDER BY 
  cscart_product_feature_variants.position ASC, 
  cscart_product_feature_variant_descriptions.variant ASC

Query time 0.00140

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "58.81"
    },
    "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": 56,
            "rows_produced_per_join": 56,
            "filtered": "100.00",
            "index_condition": "(`softwarepirmam_hewadelivard_cscart_4`.`cscart_product_feature_variants`.`variant_id` in (2082,2078,2862,2696,3820,3933,4619,3879,3896,4626,4622,4632,4635,3961,4729,4913,8331,8624,1666,3327,4197,4795,4204,4829,1665,6600,9219,2697,2722,2895,3742,3967,4252,2892,4262,4694,4696,4699,4758,4794,4783,4793,8625,4590,4608,4822,5110,4870,4872,3625,3825,4624,4648,4707,4716,4722))",
            "cost_info": {
              "read_cost": "33.61",
              "eval_cost": "5.60",
              "prefix_cost": "39.21",
              "data_read_per_join": "63K"
            },
            "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": [
              "softwarepirmam_hewadelivard_cscart_4.cscart_product_feature_variants.variant_id",
              "const"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 56,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "14.00",
              "eval_cost": "5.60",
              "prefix_cost": "58.81",
              "data_read_per_join": "169K"
            },
            "used_columns": [
              "variant_id",
              "variant",
              "lang_code"
            ]
          }
        }
      ]
    }
  }
}