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 (
    79240, 79238, 79236, 79234, 79341, 79340, 
    83864, 79346, 83852, 79345, 78379, 
    78378, 78376, 78374, 78372, 79222, 
    78202, 79224, 79311, 79310
  ) 
  AND cscart_product_descriptions.lang_code = 'en'

Query time 0.00032

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
78202 GCJD10,G-Core,Beatniqz
78372 STMLP014,Stamina Records,Douglas,Dark Angel
78374 STMLP014,Stamina Records,DJ Neon
78376 STMLP014,Stamina Records,Eufeion,K-Wire
78378 STMLP014,Stamina Records,Substanced
78379 STMLP014,Stamina Records,Kounta Kulture
79222 DNZF567,DNZ Records,Sparkos,Deekay
79224 DNZF566,DNZ Records,Garbie Project
79234 LWHDB04,LW Recordings,Safety Sam
79236 LWHDB04,LW Recordings,DJ 156 BPM
79238 LWHDB04,LW Recordings,Nippy Baines
79240 LWHDB04,LW Recordings,S3RL,Triple Zero,Lindsey Marie
79310 DNZF565,DNZ Records,FloorFillaz,V-Star,Kritikal Mass
79311 DNZF565,DNZ Records,FloorFillaz,V-Star,Garbie Project
79340 DNZF573,DNZ Records,Garbie Project
79341 DNZF573,DNZ Records,Garbie Project
79345 DNZF568,DNZ Records,Que & Rkay
79346 DNZ364,DNZ Records,Paul Norval,DJ Oskar
83852 IDR056,INNERGIZE RECORDS,LEZAMAboy
83864 IDR057,INNERGIZE RECORDS,Tone-E,Alvin Van Blur