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 (
    88316, 88315, 91431, 88314, 88308, 88313, 
    88320, 88322, 92318, 88254, 92319, 
    92321, 92320, 88259, 88256, 88257, 
    85630, 88258, 87872, 92317, 88317, 
    88318, 88011, 88255, 88252, 88061, 
    92316, 87871, 88012, 88309, 88310, 
    91432, 88307, 88253, 88319, 88321, 
    85639, 88010, 88251, 88306, 88312, 
    85640, 88311, 93832, 93833, 93836, 
    93837, 93838, 93839, 93840, 93841, 
    94589, 94590, 94591, 94820, 94821, 
    94959, 94960, 94961, 94962, 94963, 
    94964, 95394, 95395, 95396, 95397, 
    95398, 95424, 95425, 95426, 95427, 
    95428, 95429, 95430, 95431, 95432, 
    95433, 95488, 95489, 95490, 95491, 
    95492, 95493, 95497, 95498, 95499, 
    95500, 95501, 95502, 95503, 95561, 
    95562, 95563, 95564, 95661, 95662
  ) 
  AND cscart_product_descriptions.lang_code = 'en'

Query time 0.00184

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 (88316,88315,91431,88314,88308,88313,88320,88322,92318,88254,92319,92321,92320,88259,88256,88257,85630,88258,87872,92317,88317,88318,88011,88255,88252,88061,92316,87871,88012,88309,88310,91432,88307,88253,88319,88321,85639,88010,88251,88306,88312,85640,88311,93832,93833,93836,93837,93838,93839,93840,93841,94589,94590,94591,94820,94821,94959,94960,94961,94962,94963,94964,95394,95395,95396,95397,95398,95424,95425,95426,95427,95428,95429,95430,95431,95432,95433,95488,95489,95490,95491,95492,95493,95497,95498,95499,95500,95501,95502,95503,95561,95562,95563,95564,95661,95662)) and (`nuie_scalesta_net`.`cscart_product_descriptions`.`lang_code` = 'en'))"
    }
  }
}