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 (
    9730, 9731, 9732, 9733, 10181, 9734, 
    9735, 9724, 10655, 10654, 10605, 10604, 
    9873, 10653, 10646, 10645, 10647, 10648, 
    10649, 10726, 10650, 9789, 10547, 9796, 
    9874, 9875, 9879, 9887, 9941, 9942, 
    9943, 9944, 10744, 10745, 10746, 10739, 
    10740, 10741, 10742, 10734, 10735, 
    10736, 10737, 10738, 10688, 10727, 
    10728, 10729, 10730, 10731, 10732, 
    10733, 10713, 10714, 10715, 10716, 
    10717, 10718, 10719, 10720, 10721, 
    10722, 10723, 10704
  ) 
  AND cscart_ult_product_descriptions.company_id = 1 
  AND cscart_ult_product_descriptions.lang_code = 'ru'

Query time 0.00045

JSON explain

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