SELECT 
  cscart_product_descriptions.product_id, 
  cscart_product_descriptions.short_description, 
  IF(
    cscart_product_descriptions.short_description = '' 
    OR cscart_product_descriptions.short_description IS NULL, 
    cscart_product_descriptions.full_description, 
    ''
  ) AS full_description 
FROM 
  cscart_product_descriptions 
WHERE 
  cscart_product_descriptions.product_id IN (
    86313, 86329, 86259, 86307, 86297, 86323, 
    86267, 86288, 86302, 86315, 86295, 
    86301, 86314, 86321, 86265, 86286, 
    86293, 86319, 86263, 86284, 95165, 
    95168, 95171, 95173, 95177, 95179, 
    95181, 95187, 95189, 95195, 95197, 
    95201, 95203, 95205, 95213, 95215, 
    95219, 95222, 95224, 95227, 95230, 
    95232, 95234, 95236, 95238, 95240, 
    95242, 95244, 96050, 96052, 96054, 
    96056, 96058, 96060, 96063, 96065, 
    96067, 96069, 96071, 96073, 96075, 
    96077, 96079, 96080, 96081, 96084, 
    96085, 96088, 96089, 96092, 96093, 
    96096, 96097, 96100, 96101, 96104, 
    96394, 96395, 96396, 96397, 96409, 
    96410, 96429, 96432, 96433, 96442, 
    96443, 96444, 96445, 96446, 96447, 
    96448, 96449, 96450, 96451, 96452
  ) 
  AND cscart_product_descriptions.lang_code = 'en'

Query time 0.00188

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "43.24"
    },
    "table": {
      "table_name": "cscart_product_descriptions",
      "access_type": "range",
      "possible_keys": [
        "PRIMARY",
        "product_id"
      ],
      "key": "PRIMARY",
      "used_key_parts": [
        "product_id",
        "lang_code"
      ],
      "key_length": "9",
      "rows_examined_per_scan": 96,
      "rows_produced_per_join": 96,
      "filtered": "100.00",
      "cost_info": {
        "read_cost": "33.64",
        "eval_cost": "9.60",
        "prefix_cost": "43.24",
        "data_read_per_join": "366K"
      },
      "used_columns": [
        "product_id",
        "lang_code",
        "short_description",
        "full_description"
      ],
      "attached_condition": "((`nuie_scalesta_net`.`cscart_product_descriptions`.`product_id` in (86313,86329,86259,86307,86297,86323,86267,86288,86302,86315,86295,86301,86314,86321,86265,86286,86293,86319,86263,86284,95165,95168,95171,95173,95177,95179,95181,95187,95189,95195,95197,95201,95203,95205,95213,95215,95219,95222,95224,95227,95230,95232,95234,95236,95238,95240,95242,95244,96050,96052,96054,96056,96058,96060,96063,96065,96067,96069,96071,96073,96075,96077,96079,96080,96081,96084,96085,96088,96089,96092,96093,96096,96097,96100,96101,96104,96394,96395,96396,96397,96409,96410,96429,96432,96433,96442,96443,96444,96445,96446,96447,96448,96449,96450,96451,96452)) and (`nuie_scalesta_net`.`cscart_product_descriptions`.`lang_code` = 'en'))"
    }
  }
}