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 (
    109666, 109665, 109664, 109663, 109662, 
    109661, 109660, 109659, 109658, 109657, 
    110313, 110312, 110311, 110304, 110303, 
    110302, 110301, 110300, 110299, 110298
  ) 
  AND cscart_product_descriptions.lang_code = 'en'

Query time 0.00042

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
109657 STI308,Stomp-Inc UK,Solo
109658 STI308,Stomp-Inc UK,Solo
109659 STI308,Stomp-Inc UK,Solo
109660 STI308,Stomp-Inc UK,Solo
109661 STI308,Stomp-Inc UK,Solo
109662 STI308,Stomp-Inc UK,Solo
109663 STI308,Stomp-Inc UK,Solo
109664 STI308,Stomp-Inc UK,Solo
109665 STI308,Stomp-Inc UK,Solo
109666 STI308,Stomp-Inc UK,Solo
110298 247HCLP038,24/7 Hardcore,S3RL,Kinn
110299 247HCLP038,24/7 Hardcore,Rob IYF,Al Storm
110300 247HCLP038,24/7 Hardcore,Al Storm,Rob IYF
110301 247HCLP038,24/7 Hardcore,Daniel Seven
110302 247HCLP038,24/7 Hardcore,DJ Shimamura
110303 247HCLP038,24/7 Hardcore,SethroW
110304 247HCLP038,24/7 Hardcore,Rob IYF,Al Storm,Jack Skipper
110311 UIR020,Underground Industry Records,The 3eyed
110312 UIR020,Underground Industry Records,The 3eyed
110313 UIR020,Underground Industry Records,The 3eyed,Mykoz