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 (
    92558, 92552, 92551, 92550, 92549, 92548, 
    92547, 92546, 92545, 92544, 92543, 
    92542, 92541, 92540, 92539, 92538, 
    92537, 92536, 92535, 92534
  ) 
  AND cscart_product_descriptions.lang_code = 'en'

Query time 0.00033

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
92534 HDP001,Traffic Records,Adukuf,Stripe
92535 HDP001,Traffic Records,Aj Battuta
92536 HDP001,Traffic Records,Aj Battuta
92537 HDP001,Traffic Records,Aman,Yarsley
92538 HDP001,Traffic Records,Amber D,Kidd Kaos
92539 HDP001,Traffic Records,Andy Farley,Vinylgroover,The Red Hed
92540 HDP001,Traffic Records,Andy Richmond
92541 HDP001,Traffic Records,Anne Savage,BK
92542 HDP001,Traffic Records,Anne Savage,Scott Attrill
92543 HDP001,Traffic Records,April,Technikal
92544 HDP001,Traffic Records,Attat
92545 HDP001,Traffic Records,Avaline,Vinylgroover,The Red Hed
92546 HDP001,Traffic Records,Bam Bam,Pebbles
92547 HDP001,Traffic Records,Bam Bam,Pebbles
92548 HDP001,Traffic Records,Bang Brothers
92549 HDP001,Traffic Records,BC,Ben H,Tom Parr
92550 HDP001,Traffic Records,Beckers,Vinylgroover,The Red Hed
92551 HDP001,Traffic Records,Ben Keen
92552 HDP001,Traffic Records,BK
92558 FE334,Fatal Energy Records,PAJ