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 (
    95369, 95370, 95371, 95372, 95373, 95374, 
    95375, 95377, 95378, 95379, 95380, 
    95381, 95382, 95383, 95384, 95385, 
    95386, 95387, 95388, 95389, 95390, 
    95391, 95392, 95393, 95402, 95403, 
    95404, 95405, 95406, 95407, 95408, 
    95409, 95410, 95411, 95412, 95413, 
    95414, 95415, 95416, 95417, 95418, 
    95419, 95420, 95421, 95422, 95423, 
    95442, 95448, 95556, 95557, 95565, 
    95566, 95567, 95568, 95569, 95570, 
    95571, 95572, 95573, 95574, 95575, 
    95576, 95577, 95578, 95579, 95580, 
    95581, 95582, 95583, 95584, 95585, 
    95586, 95587, 95588, 95589, 95590, 
    95591, 95592, 95593, 95594, 95595, 
    95596, 95597, 95598, 95599, 95600, 
    95601, 95602, 95603, 95604, 95605, 
    95606, 95607, 95608, 95609, 95610
  ) 
  AND cscart_product_descriptions.lang_code = 'en'

Query time 0.00059

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 (95369,95370,95371,95372,95373,95374,95375,95377,95378,95379,95380,95381,95382,95383,95384,95385,95386,95387,95388,95389,95390,95391,95392,95393,95402,95403,95404,95405,95406,95407,95408,95409,95410,95411,95412,95413,95414,95415,95416,95417,95418,95419,95420,95421,95422,95423,95442,95448,95556,95557,95565,95566,95567,95568,95569,95570,95571,95572,95573,95574,95575,95576,95577,95578,95579,95580,95581,95582,95583,95584,95585,95586,95587,95588,95589,95590,95591,95592,95593,95594,95595,95596,95597,95598,95599,95600,95601,95602,95603,95604,95605,95606,95607,95608,95609,95610)) and (`nuie_scalesta_net`.`cscart_product_descriptions`.`lang_code` = 'en'))"
    }
  }
}