SELECT 
  cscart_ult_product_descriptions.product_id, 
  cscart_ult_product_descriptions.short_description, 
  IF(
    cscart_ult_product_descriptions.short_description = "", 
    cscart_ult_product_descriptions.full_description, 
    ""
  ) AS full_description, 
  cscart_ult_product_descriptions.meta_keywords, 
  cscart_ult_product_descriptions.meta_description, 
  cscart_ult_product_descriptions.search_words, 
  cscart_ult_product_descriptions.promo_text 
FROM 
  cscart_ult_product_descriptions 
WHERE 
  cscart_ult_product_descriptions.product_id IN (4, 227, 245) 
  AND cscart_ult_product_descriptions.company_id = 1 
  AND cscart_ult_product_descriptions.lang_code = 'en'

Query time 0.00044

Explain
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE cscart_ult_product_descriptions range PRIMARY,product_id,company_id PRIMARY 13 3 Using index condition

Result

product_id short_description full_description meta_keywords meta_description search_words promo_text
4 <p>Clear Motion Rate (CMR) is Samsung's more comprehensive and accurate measure for how well an LCD or LED TV can display fast-moving images. Previously, motion clarity was expressed simply by the refresh rate, measured in Hz. CMR, however, takes into account all three factors that contribute to motion clarity: panel refresh rate, image processor speed and backlight technology.</p> <p class="product-promo-text"> <span class="product-promo-header">FREE US shipping over $100!</span><span class="product-promo-body">Orders within next 2 days will be shipped on Monday</span> </p>
245 <p> A6 chip. 8MP iSight camera. 4-inch Retina display. Ultrafast LTE wireless. iPhone 5c has the things that made iPhone 5 an amazing phone — and more, including iOS 7. All in a completely new design that feels great in your hand.</p>