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 (
    92990, 92989, 92988, 92987, 92986, 92985, 
    92984, 92983, 92982, 92981, 92980, 
    92979, 92978, 92977, 92976, 92975, 
    92974, 92973, 92972, 92971
  ) 
  AND cscart_product_descriptions.lang_code = 'en'

Query time 0.00041

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
92971 BORHH1,Alien Technology,Rebel Frequency
92972 BORHH1,Alien Technology,Distorted Robocops
92973 BORHH1,Alien Technology,Doll Beat,DJ Blade
92974 BORHH1,Alien Technology,Distorted Robocops
92975 BORHH1,Alien Technology,White & Whyld
92976 BORHH1,Alien Technology,Distorted Robocops
92977 BORHH1,Alien Technology,Rebel Frequency
92978 BORHH1,Alien Technology,Distorted Robocops
92979 BORHH1,Alien Technology,S.I.D.R.,Andy Wolf
92980 BORHH1,Alien Technology,Distorted Robocops
92981 BORHH1,Alien Technology,Rebel Frequency
92982 BORHH1,Alien Technology,Distorted Robocops,Phoenix
92983 BORHH1,Alien Technology,Rebel Frequency
92984 BORHH1,Alien Technology,Distorted Robocops
92985 BORHH1,Alien Technology,Rebel Frequency
92986 BORHH1,Alien Technology,Distorted Robocops
92987 BORHH1,Alien Technology,Distorted Robocops
92988 BORHH1,Alien Technology,Distorted Robocops,Phoenix
92989 BORHH1,Alien Technology,Rebel Frequency
92990 BORHH1,Alien Technology,Distorted Robocops,Phoenix