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 (
    96622, 96623, 96624, 96625, 96626, 96627, 
    96628, 96629, 96668, 96669, 96670, 
    96671, 96672, 96673, 96674, 96675, 
    96676, 96678, 96680, 96681, 96682, 
    96683, 96686, 96687, 96688, 96689, 
    96690, 96691, 96692, 96694, 97083, 
    97219, 97220, 97221, 97222, 97223, 
    97224, 97225, 97226, 97227, 97567, 
    97570, 97573, 97576, 97577, 97578, 
    97579, 97580, 97582, 97583, 97584, 
    97585, 97586, 97874, 97875, 97876, 
    97877, 97878, 97879, 97880, 97881, 
    97882, 97883, 97884, 97885, 97886, 
    97887, 97888, 97889, 98001, 98176, 
    98177, 98178, 98179, 98180, 98181, 
    98182, 98183, 98184, 98185, 98186, 
    98187, 98188, 98189, 98190, 98191, 
    98200, 98201, 98202, 98203, 98204, 
    98205, 98206, 98207, 98391, 98392
  ) 
  AND cscart_product_descriptions.lang_code = 'en'

Query time 0.00150

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 (96622,96623,96624,96625,96626,96627,96628,96629,96668,96669,96670,96671,96672,96673,96674,96675,96676,96678,96680,96681,96682,96683,96686,96687,96688,96689,96690,96691,96692,96694,97083,97219,97220,97221,97222,97223,97224,97225,97226,97227,97567,97570,97573,97576,97577,97578,97579,97580,97582,97583,97584,97585,97586,97874,97875,97876,97877,97878,97879,97880,97881,97882,97883,97884,97885,97886,97887,97888,97889,98001,98176,98177,98178,98179,98180,98181,98182,98183,98184,98185,98186,98187,98188,98189,98190,98191,98200,98201,98202,98203,98204,98205,98206,98207,98391,98392)) and (`nuie_scalesta_net`.`cscart_product_descriptions`.`lang_code` = 'en'))"
    }
  }
}