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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 (
    10657, 12619, 12620, 12593, 12595, 12585, 
    12587, 12623, 13091, 12588, 12590, 
    12591, 12592, 10497, 10498, 10499, 
    10500, 10501, 10502, 10503, 10504, 
    10505, 10506, 10507, 10508, 10509, 
    10510, 10511, 10512, 10513, 10514, 
    10515, 10516, 10517, 10518, 10519, 
    10520, 10521, 10641, 10640, 10639, 
    10638, 10637, 10636, 10635, 10634, 
    10633, 10632, 10631, 10630, 10629, 
    10628, 10627, 10626, 10625, 10624, 
    10623, 10622, 10621, 10620, 10619, 
    10618, 10617, 10616
  ) 
  AND cscart_ult_product_descriptions.company_id = 1 
  AND cscart_ult_product_descriptions.lang_code = 'ru'

Query time 0.00032

JSON explain

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