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 (
    93575, 93576, 93577, 93578, 93579, 93580, 
    93581, 93582, 93583, 93584, 93585, 
    93586, 93587, 93588, 93589, 93590, 
    93591, 93592, 93593, 93594, 93595, 
    93596, 93597, 93598, 93599, 93600, 
    93601, 93602, 93603, 93604, 93605, 
    93606, 93607, 93608, 93609, 93610, 
    93611, 93612, 93613, 93614, 93615, 
    93616, 93617, 93618, 93619, 93620, 
    93621, 93622, 93623, 93624, 93625, 
    93626, 93627, 93628, 93629, 93630, 
    93631, 93632, 93633, 93634, 93635, 
    93636, 93637, 93638, 93639, 93640, 
    93641, 93642, 93643, 93644, 93645, 
    93646, 93647, 93648, 93649, 93650, 
    93651, 93652, 93653, 93654, 93655, 
    93656, 93657, 93658, 93659, 93660, 
    93661, 93662, 93663, 93664, 93665, 
    93666, 93667, 93668, 93669, 93670
  ) 
  AND cscart_product_descriptions.lang_code = 'en'

Query time 0.00152

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 (93575,93576,93577,93578,93579,93580,93581,93582,93583,93584,93585,93586,93587,93588,93589,93590,93591,93592,93593,93594,93595,93596,93597,93598,93599,93600,93601,93602,93603,93604,93605,93606,93607,93608,93609,93610,93611,93612,93613,93614,93615,93616,93617,93618,93619,93620,93621,93622,93623,93624,93625,93626,93627,93628,93629,93630,93631,93632,93633,93634,93635,93636,93637,93638,93639,93640,93641,93642,93643,93644,93645,93646,93647,93648,93649,93650,93651,93652,93653,93654,93655,93656,93657,93658,93659,93660,93661,93662,93663,93664,93665,93666,93667,93668,93669,93670)) and (`nuie_scalesta_net`.`cscart_product_descriptions`.`lang_code` = 'en'))"
    }
  }
}