SELECT 
  q_product_feature_variants.variant_id, 
  q_product_feature_variants.position, 
  q_product_feature_variants.color, 
  q_product_feature_variant_descriptions.variant 
FROM 
  q_product_feature_variants 
  LEFT JOIN q_product_feature_variant_descriptions ON q_product_feature_variants.variant_id = q_product_feature_variant_descriptions.variant_id 
  AND q_product_feature_variant_descriptions.lang_code = 'en' 
WHERE 
  q_product_feature_variants.variant_id IN (
    7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 27, 28, 
    66, 67, 69, 70, 71, 72, 73, 75, 76, 78, 
    80, 81, 297, 5779, 5781, 5839, 5841, 
    5842, 5843, 5918, 5933, 5959, 6027, 
    6028, 6083, 6084, 6085, 6090, 6091, 
    6143, 6643, 6728, 6815, 7557, 7558, 
    7559, 7603, 7651, 8163, 8190, 8193, 
    8197, 8200, 8208, 8214, 8223, 8224, 
    8225, 8230, 8235, 8236, 8239, 8240, 
    8241, 8246, 8254, 8285, 8286, 8288, 
    8290, 8292, 8295, 8296, 8298, 8302, 
    8303, 8305, 8345, 8349, 8353, 8356, 
    8357, 8359, 8360, 8364, 8369, 8370, 
    8372, 8373, 8374, 8375, 8376, 8381, 
    8382, 8384, 8385, 8389, 8390, 8392, 
    8394, 8396, 8401, 8402, 8405, 8407, 
    8413, 8414, 8416, 8417, 8418
  ) 
ORDER BY 
  q_product_feature_variants.position ASC, 
  q_product_feature_variant_descriptions.variant ASC

Query time 0.00179

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "403.21"
    },
    "ordering_operation": {
      "using_temporary_table": true,
      "using_filesort": true,
      "nested_loop": [
        {
          "table": {
            "table_name": "q_product_feature_variants",
            "access_type": "range",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "variant_id"
            ],
            "key_length": "3",
            "rows_examined_per_scan": 112,
            "rows_produced_per_join": 112,
            "filtered": "100.00",
            "index_condition": "(`portal`.`q_product_feature_variants`.`variant_id` in (7,8,9,10,11,12,13,14,15,16,27,28,66,67,69,70,71,72,73,75,76,78,80,81,297,5779,5781,5839,5841,5842,5843,5918,5933,5959,6027,6028,6083,6084,6085,6090,6091,6143,6643,6728,6815,7557,7558,7559,7603,7651,8163,8190,8193,8197,8200,8208,8214,8223,8224,8225,8230,8235,8236,8239,8240,8241,8246,8254,8285,8286,8288,8290,8292,8295,8296,8298,8302,8303,8305,8345,8349,8353,8356,8357,8359,8360,8364,8369,8370,8372,8373,8374,8375,8376,8381,8382,8384,8385,8389,8390,8392,8394,8396,8401,8402,8405,8407,8413,8414,8416,8417,8418))",
            "cost_info": {
              "read_cost": "246.41",
              "eval_cost": "22.40",
              "prefix_cost": "268.81",
              "data_read_per_join": "127K"
            },
            "used_columns": [
              "variant_id",
              "color",
              "position"
            ]
          }
        },
        {
          "table": {
            "table_name": "q_product_feature_variant_descriptions",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "variant_id",
              "lang_code"
            ],
            "key_length": "9",
            "ref": [
              "portal.q_product_feature_variants.variant_id",
              "const"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 112,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "112.00",
              "eval_cost": "22.40",
              "prefix_cost": "403.21",
              "data_read_per_join": "338K"
            },
            "used_columns": [
              "variant_id",
              "variant",
              "lang_code"
            ]
          }
        }
      ]
    }
  }
}