SELECT 
  cscart_product_descriptions.product_id, 
  cscart_product_descriptions.short_description, 
  IF(
    cscart_product_descriptions.short_description = '' 
    OR cscart_product_descriptions.short_description IS NULL, 
    cscart_product_descriptions.full_description, 
    ''
  ) AS full_description, 
  cscart_product_descriptions.meta_keywords, 
  cscart_product_descriptions.meta_description, 
  cscart_product_descriptions.search_words, 
  cscart_product_descriptions.promo_text 
FROM 
  cscart_product_descriptions 
WHERE 
  cscart_product_descriptions.product_id IN (
    75435, 75434, 75344, 74998, 74784, 75253, 
    75252, 75251, 75250, 75249, 75248, 
    75247, 75246, 75245, 75244, 75243, 
    75242, 74751, 74748, 74747
  ) 
  AND cscart_product_descriptions.lang_code = 'en'

Query time 0.00038

Explain
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE cscart_product_descriptions range PRIMARY,product_id PRIMARY 9 20 Using where

Result

product_id short_description full_description meta_keywords meta_description search_words promo_text
74747 FE188,Fatal Energy Records,Chris F
74748 FE188,Fatal Energy Records,Chris F
74751 FE188,Fatal Energy Records,Chris F,D-Railed
74784 Darroo, Reece Project, Afterlife, Infused Traxx, Darroo Remix, Featured Hard Dance New, Hard Dance, Toolbox Digital Download Afterlife (Darroo Remix) by Infused Traxx from Toolbox Digital, the UK’s number one outlet for exclusive hard dance, hard trance, hardcore, hardstyle and more. IT024,Infused Traxx,Reece Project,Darroo
74998 RSR001,Rave Skank Records,Susumu
75242 DNZHD03,DNZ Records,DJ Oskar,Rafa Dj
75243 DNZHD03,DNZ Records,Raul Soria
75244 DNZHD03,DNZ Records,Audiorush,Mr. Hyde
75245 DNZHD03,DNZ Records,DJ Miho,Ivan Diaz,Miguel DJ
75246 DNZHD03,DNZ Records,DJ Bass
75247 DNZHD03,DNZ Records,JJ,DJ Oskar
75248 DNZHD03,DNZ Records,New Limit
75249 DNZHD03,DNZ Records,DJ Muela,Pakore DJ
75250 DNZHD03,DNZ Records,Ben G,DJ Oskar
75251 DNZHD03,DNZ Records,Tribute Vocals
75252 DNZHD03,DNZ Records,Bounce Enforcerz,DJ Oskar
75253 DNZHD03,DNZ Records,Jordi Bump
75344 DNZF478,DNZ Records,Que & Rkay
75434 DNZ349,DNZ Records,Darren Glancy,Jamie B
75435 DNZ349,DNZ Records,Darren Glancy,DJ Oskar