Sandbox

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 (
    10322, 10106, 10105, 10104, 10103, 10206, 
    10209, 10216, 10203, 10204, 10205, 
    10207, 10208, 10210, 10211, 10212, 
    10213, 10214, 10215, 10217, 10218, 
    10219, 10220, 10221, 10222, 10323, 
    10324, 10325, 10326, 10327, 10328, 
    10329, 10330, 10331, 10332, 10333, 
    10334, 10335, 10336, 10337, 10338, 
    10339, 10340, 10341, 10342, 10778, 
    10779, 10780, 10781, 10782, 10783, 
    10784, 10785, 10786, 10787, 10788, 
    10789, 10790, 10791, 10792, 10793, 
    10794, 10795, 10796
  ) 
  AND cscart_ult_product_descriptions.company_id = 1 
  AND cscart_ult_product_descriptions.lang_code = 'ru'

Query time 0.00044

JSON explain

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