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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 (
    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, 
    10194, 10692, 12530, 12516, 12496, 
    12519, 12510, 10087, 10100, 10698, 
    10478, 9883, 9901, 10493, 10485, 10476, 
    10479, 10494, 10492, 10468, 9903, 10487, 
    9899, 10473, 10486, 9881, 9896, 9892, 
    10481, 9876, 10474, 10491
  ) 
  AND cscart_ult_product_descriptions.company_id = 1 
  AND cscart_ult_product_descriptions.lang_code = 'ru'

Query time 0.00026

JSON explain

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