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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 (
    6230, 6250, 6256, 6258, 6255, 6245, 6251, 
    6257, 6246, 6259, 6260, 6248, 6253, 
    6252, 6247, 6249, 6254
  ) 
  AND cscart_ult_product_descriptions.company_id = 1 
  AND cscart_ult_product_descriptions.lang_code = 'en'

Query time 0.00037

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "table_name": "cscart_ult_product_descriptions",
      "access_type": "range",
      "possible_keys": ["PRIMARY", "product_id", "company_id"],
      "key": "product_id",
      "key_length": "3",
      "used_key_parts": ["product_id"],
      "rows": 17,
      "filtered": 100,
      "index_condition": "cscart_ult_product_descriptions.product_id in (6230,6250,6256,6258,6255,6245,6251,6257,6246,6259,6260,6248,6253,6252,6247,6249,6254)",
      "attached_condition": "cscart_ult_product_descriptions.company_id = 1 and cscart_ult_product_descriptions.lang_code = 'en'"
    }
  }
}

Result

product_id	short_description	full_description	meta_keywords	meta_description	search_words	promo_text
6245		Stinger dual band 806-896 & 1850-1950 MHz
6246		Stinger Single Band UHF
6247		Step up bumper antenna 150-174 MHz
6248		BUMPER STEP ANTENNA WITH LOCK 162-174/406-512/760-870 MHz
6249		BUMPER STEP ANTENNA WITH LOCK 150-162/406-512/760-870 MHz
6250		<p>Concealed under bumper 136-174 MHz</p>
6251		<p>Concealed under bumper 406-512 MHz</p>
6252		Rear deck SUPERBAND 150-174 MHz sedans only
6253		Rear deck SUPERBAND 136-160 MHz sedans only
6254		Rear deck SUPERBAND 406-512 MHz
6255		<p>Rear deck dual band 150-174 MHz & 406-430 MHz</p>
6256		<p>Rear deck dual band 150-174 MHz & 746-870 MHz</p>
6258		SILL ANTENNA VHF 151-174 MHz
6259		<p>Compact blade style 4G/LTE 791-862 & 2500-2690 MHz</p>
6260		Compact patch style 4G/LTE 791-862 & 2500-2690 MHz