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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 (
    128, 51118, 51117, 51116, 51115, 51114, 
    51113, 51165, 51164, 51163, 51162, 
    51161, 52, 51183, 20, 51188, 51187, 
    51186, 51185, 51184, 51194, 51193, 
    51192, 51191, 51190, 51189, 19, 51201, 
    51200, 51199, 51198, 51197, 51196, 
    51195, 131, 111, 51212, 144, 51215, 
    51214, 51213, 51444, 51445, 51446, 
    51447, 51220, 51219, 51218, 51217, 
    51216, 146, 51448, 51449, 51231, 51230, 
    51229, 51228, 51227, 51226, 51225, 
    109, 51243, 51242, 51241, 51240, 51239, 
    36, 51253, 51252, 51251, 51250, 51249, 
    34, 51273, 147, 51277, 51276, 51275, 
    51274, 9, 59, 60, 13, 51346, 118, 114, 
    84, 51347, 85, 61, 51350, 123, 15, 95, 
    51352, 51351, 96, 89, 51390, 51391, 
    51392, 51393, 51394
  ) 
  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,
    "message": "no matching row in const table"
  }
}