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 (
    95663, 95664, 95665, 95666, 95667, 95668, 
    95669, 95670, 95671, 95672, 95673, 
    95674, 95675, 95676, 95677, 95678, 
    95679, 95680, 95681, 95682, 95684, 
    95685, 95686, 95687, 95688, 95689, 
    95690, 95691, 95692, 95693, 95694, 
    95695, 95696, 95697, 95698, 95699, 
    95700, 95701, 96189, 96842, 96843, 
    96844, 96845, 96846, 96847, 97713, 
    97714, 97715, 98024, 98025, 98026, 
    98027, 98028, 98029, 98515, 98521, 
    98522, 99054, 99055, 99189, 99190, 
    99191, 99239, 99356, 99357, 99358, 
    99359, 99360, 99361, 99362, 99363, 
    99364, 99365, 99366, 99374, 99375, 
    99376, 99377, 99378, 99379, 99380, 
    99381, 99382, 99383, 99384, 99385, 
    99386, 99387, 99388, 99389, 99390, 
    99391, 99392, 99393, 99394, 99395
  ) 
  AND cscart_product_descriptions.lang_code = 'en'

Query time 0.00104

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 (95663,95664,95665,95666,95667,95668,95669,95670,95671,95672,95673,95674,95675,95676,95677,95678,95679,95680,95681,95682,95684,95685,95686,95687,95688,95689,95690,95691,95692,95693,95694,95695,95696,95697,95698,95699,95700,95701,96189,96842,96843,96844,96845,96846,96847,97713,97714,97715,98024,98025,98026,98027,98028,98029,98515,98521,98522,99054,99055,99189,99190,99191,99239,99356,99357,99358,99359,99360,99361,99362,99363,99364,99365,99366,99374,99375,99376,99377,99378,99379,99380,99381,99382,99383,99384,99385,99386,99387,99388,99389,99390,99391,99392,99393,99394,99395)) and (`nuie_scalesta_net`.`cscart_product_descriptions`.`lang_code` = 'en'))"
    }
  }
}