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SELECT 
  cscart_ult_product_descriptions.product_id, 
  cscart_ult_product_descriptions.short_description, 
  IF(
    cscart_ult_product_descriptions.short_description = "", 
    cscart_ult_product_descriptions.full_description, 
    ""
  ) AS full_description, 
  cscart_ult_product_descriptions.meta_keywords, 
  cscart_ult_product_descriptions.meta_description, 
  cscart_ult_product_descriptions.search_words, 
  cscart_ult_product_descriptions.promo_text 
FROM 
  cscart_ult_product_descriptions 
WHERE 
  cscart_ult_product_descriptions.product_id IN (
    10610, 10611, 10612, 10613, 10614, 10615, 
    10616, 10617, 10618, 10619, 10620, 
    10621, 10622, 10623, 10624, 9685, 10653, 
    10646, 10645, 10647, 10648, 10649, 
    10726, 10650, 10547, 9789, 10655, 10654, 
    10605, 10604, 9873, 9972, 9973, 9975, 
    9976, 9977, 9978, 9979, 10179, 10180, 
    10523, 10073, 10077, 10076, 10086, 
    10085, 10084, 10083, 10082, 10081, 
    10080, 10079, 10584, 10594, 9814, 9815, 
    9816, 9817, 9818, 15732, 9820, 9821, 
    9822, 9823
  ) 
  AND cscart_ult_product_descriptions.company_id = 1 
  AND cscart_ult_product_descriptions.lang_code = 'ru'

Query time 0.00034

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}