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 (
    92176, 92177, 92178, 92322, 92323, 92324, 
    83897, 83898, 83900, 83901, 83902, 
    83903, 83904, 83905, 83906, 88062, 
    91735, 91736, 91737, 91738, 91739, 
    91740, 91741, 91742, 91743, 91744, 
    91745, 91746, 91747, 91748, 91749, 
    91750, 91751, 91752, 91753, 91754, 
    91816, 91817, 91818, 91819, 91820, 
    91821, 91822, 91823, 91824, 91825, 
    91826, 91827, 91828, 91829, 91830, 
    91831, 91832, 91833, 91834, 91835, 
    91708, 91709, 91710, 91711, 91712, 
    91713, 91714, 91715, 91716, 91717, 
    91718, 91719, 91720, 91721, 91722, 
    91723, 91724, 91725, 91726, 91727, 
    91728, 91729, 91730, 91731, 91732, 
    91733, 91734, 91755, 91756, 91757, 
    91758, 91759, 91760, 91761, 91762, 
    91763, 91812, 91813, 91814, 91815
  ) 
  AND cscart_product_descriptions.lang_code = 'en'

Query time 0.00133

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 (92176,92177,92178,92322,92323,92324,83897,83898,83900,83901,83902,83903,83904,83905,83906,88062,91735,91736,91737,91738,91739,91740,91741,91742,91743,91744,91745,91746,91747,91748,91749,91750,91751,91752,91753,91754,91816,91817,91818,91819,91820,91821,91822,91823,91824,91825,91826,91827,91828,91829,91830,91831,91832,91833,91834,91835,91708,91709,91710,91711,91712,91713,91714,91715,91716,91717,91718,91719,91720,91721,91722,91723,91724,91725,91726,91727,91728,91729,91730,91731,91732,91733,91734,91755,91756,91757,91758,91759,91760,91761,91762,91763,91812,91813,91814,91815)) and (`nuie_scalesta_net`.`cscart_product_descriptions`.`lang_code` = 'en'))"
    }
  }
}