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 (
    93777, 93778, 93779, 93780, 93825, 93826, 
    93827, 93828, 93829, 94073, 94140, 
    94141, 94142, 94143, 94144, 94145, 
    94146, 94147, 94148, 94149, 94150, 
    94151, 94152, 94153, 94154, 94155, 
    94156, 94157, 94158, 94159, 94160, 
    94604, 94605, 94606, 94607, 94608, 
    94609, 94610, 94611, 94612, 94613, 
    94614, 94615, 94616, 94617, 94618, 
    94654, 94655, 94656, 94657, 94658, 
    94666, 94667, 94668, 94669, 94670, 
    95314, 95378, 95379, 95380, 95381, 
    95382, 95383, 95384, 95385, 95386, 
    95387, 95388, 95389, 95390, 95391, 
    95402, 95403, 95404, 95405, 95406, 
    95407, 95408, 95409, 95410, 95411, 
    95412, 95413, 95414, 95415, 95416, 
    95417, 95418, 95419, 95420, 95421, 
    95422, 95423, 95448, 96123, 96130
  ) 
  AND cscart_product_descriptions.lang_code = 'en'

Query time 0.00120

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 (93777,93778,93779,93780,93825,93826,93827,93828,93829,94073,94140,94141,94142,94143,94144,94145,94146,94147,94148,94149,94150,94151,94152,94153,94154,94155,94156,94157,94158,94159,94160,94604,94605,94606,94607,94608,94609,94610,94611,94612,94613,94614,94615,94616,94617,94618,94654,94655,94656,94657,94658,94666,94667,94668,94669,94670,95314,95378,95379,95380,95381,95382,95383,95384,95385,95386,95387,95388,95389,95390,95391,95402,95403,95404,95405,95406,95407,95408,95409,95410,95411,95412,95413,95414,95415,95416,95417,95418,95419,95420,95421,95422,95423,95448,96123,96130)) and (`nuie_scalesta_net`.`cscart_product_descriptions`.`lang_code` = 'en'))"
    }
  }
}