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 (
    92337, 92338, 92339, 92340, 88093, 84704, 
    84707, 91054, 90824, 90825, 89173, 
    91839, 87232, 87233, 87237, 87238, 
    87242, 87243, 87247, 87248, 88509, 
    88513, 88950, 88951, 88952, 90321, 
    90322, 92450, 92451, 92452, 92453, 
    92454, 92455, 92456, 91838, 86859, 
    88142, 88145, 88520, 91885, 87878, 
    91837, 91886, 91887, 92329, 92330, 
    92331, 92332, 92500, 86278, 86279, 
    82385, 82362, 84696, 88938, 84699, 
    88516, 88519, 88949, 92000, 85039, 
    92424, 92425, 92426, 92427, 92428, 
    92429, 92431, 88940, 84251, 84256, 
    87580, 87595, 87610, 88791, 87370, 
    89609, 89610, 84703, 84706, 91053, 
    92432, 92433, 92434, 92435, 92436, 
    92437, 92438, 88941, 88512, 92173, 
    92174, 92395, 92396, 92397, 92398
  ) 
  AND cscart_product_descriptions.lang_code = 'en'

Query time 0.00159

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 (92337,92338,92339,92340,88093,84704,84707,91054,90824,90825,89173,91839,87232,87233,87237,87238,87242,87243,87247,87248,88509,88513,88950,88951,88952,90321,90322,92450,92451,92452,92453,92454,92455,92456,91838,86859,88142,88145,88520,91885,87878,91837,91886,91887,92329,92330,92331,92332,92500,86278,86279,82385,82362,84696,88938,84699,88516,88519,88949,92000,85039,92424,92425,92426,92427,92428,92429,92431,88940,84251,84256,87580,87595,87610,88791,87370,89609,89610,84703,84706,91053,92432,92433,92434,92435,92436,92437,92438,88941,88512,92173,92174,92395,92396,92397,92398)) and (`nuie_scalesta_net`.`cscart_product_descriptions`.`lang_code` = 'en'))"
    }
  }
}