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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 (
    12498, 13101, 13100, 10699, 10695, 10195, 
    10576, 10696, 9760, 10583, 10701, 10582, 
    10139, 12503, 10575, 9932, 10075, 10135, 
    9952, 10074, 10573, 10577, 10651, 10642, 
    12529, 12515, 12525, 12532, 12523, 
    10198, 10557, 10202, 10556, 10101, 
    10558, 10142, 10134, 10141, 10053, 
    10138, 10130, 9934, 10563, 10569, 10572, 
    10602, 10603, 10137, 12517, 12531, 
    12526, 12509, 10226, 10551, 10550, 
    10193, 10659, 10664, 10666, 10661, 
    10663, 10190, 10657, 10658
  ) 
  AND cscart_ult_product_descriptions.company_id = 1 
  AND cscart_ult_product_descriptions.lang_code = 'ru'

Query time 0.00038

JSON explain

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