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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 (
    51132, 51131, 51134, 51133, 51130, 41, 
    51146, 51145, 38, 51148, 51147, 51150, 
    51149, 37, 51169, 51168, 51167, 51166, 
    90, 51171, 51170, 51209, 51208, 51207, 
    51206, 124, 51221, 137, 51224, 51223, 
    126, 115, 81, 11, 51357, 51360, 51359, 
    51358, 51361, 30, 51362, 51363, 51364, 
    51365, 31, 51366, 51367, 51368, 51369, 
    140, 51385, 51386, 51387, 51388, 51389, 
    88, 51395, 51396, 51397, 51555, 51556, 
    80, 51398, 51399
  ) 
  AND cscart_ult_product_descriptions.company_id = 1 
  AND cscart_ult_product_descriptions.lang_code = 'ru'

Query time 0.00037

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}