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 
FROM 
  cscart_product_descriptions 
WHERE 
  cscart_product_descriptions.product_id IN (
    11509, 13776, 11511, 11521, 11527, 11489, 
    11524, 11497, 11510, 13775, 11515, 
    13772, 11486, 11487, 11520, 11503, 
    13781, 11548, 11547, 11549, 11573, 
    11493, 11490, 11512
  ) 
  AND cscart_product_descriptions.lang_code = 'en'

Query time 0.00067

JSON explain

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  "query_block": {
    "select_id": 1,
    "table": {
      "table_name": "cscart_product_descriptions",
      "access_type": "range",
      "possible_keys": ["PRIMARY", "product_id"],
      "key": "product_id",
      "key_length": "3",
      "used_key_parts": ["product_id"],
      "rows": 24,
      "filtered": 100,
      "index_condition": "cscart_product_descriptions.product_id in (11509,13776,11511,11521,11527,11489,11524,11497,11510,13775,11515,13772,11486,11487,11520,11503,13781,11548,11547,11549,11573,11493,11490,11512)",
      "attached_condition": "cscart_product_descriptions.lang_code = 'en'"
    }
  }
}

Result

product_id short_description full_description
11486 <ul><li>Porcelain 2 tier cake stand with detailed blue flower patterns and a gold rim </li><li>Hand wash recommended</li></ul>
11487 <ul><li>Porcelain 2 tier cake stand with detailed red flower patterns and a gold rim </li><li>Hand wash recommended</li></ul><p></p>
11489 <ul><li>Alluminium Ice Shovel</li><li>Aluminium construction</li><li>Perfect for use with ice and champagne buckets</li><li>Ideal for bars and parties</li><li>Hand wash only</li></ul>
11490 <ul><li>A stylish and elegant glass suitable for Gin and Tonics</li><li>Dishwasher safe</li><li>500 ml </li></ul><p></p>
11493 <ul><li>35cm diameter food cover that protects food from pesky bugs</li></ul>
11497 <ul><li>Soft grip handle</li><li>Stainless steel blade</li><li>Easy to use and slices the avocado into thin slices </li></ul>
11503 <ul><li>Beautifully designed cookware featuring the latest cookware technology </li><li>Elegant and classic design</li><li>Unique non-stick exterior & interior </li><li>Enjoy the pleasure of cooking with a non-stick frying pan combo set - 24 and 28 cm </li></ul> <p><br /></p>
11509 <ul><li>A two piece Pastry Brush Set (20cm and 21cm) </li><li>Natural bristles </li><li>Easy to use </li><li>Wooden handles </li><li>Suitable for baking and pastry basting</li></ul> <p><br /></p>
11510 <ul><li>Stainless steel whisk </li><li>Suitable for baking and pastry</li></ul>
11511 <ul><li>A wine bottle stopper and pourer</li><li>Can also be used for oil and vinegar</li><li>Free flowing, flexible, adapting to the bottle neck</li></ul> <p><br /></p>
11512 <ul><li>Suitable for making ice lollies for kids</li><li>Each of the double <b>lolly</b> moulds in this <b>set</b> of 4 has a tray to keep the <b>lollies</b> standing upright in the freezer when chilling</li><li>This reusable <b>Ice Lolly</b> Maker s<b>et</b> allows you to make four tasty lollies from fruit, juices, cordial, and more, great for cooling down on a hot day</li></ul>
11515 <ul><li>29cm Stainless steel blade</li><li>Perfect for boning meat </li></ul>
11520 <ul><li>Stainless steel cocktail strainer </li></ul>
11521 <ul><li>3 mini porcelain dishes with an Acacia wooden tray</li><li>Suitable for dipping sauces</li><li>Dishwasher and oven safe</li><li>Easily clean the wooden tray with a damp clean cloth</li></ul>
11524 <ul><li>The perfect cake plate</li><li>Can also be used as a platter plate</li><li>Dishwasher safe</li></ul>
11527 <p>Porcelain and acacia wood.Suitable for dipping and snacks,oven proof and dishwasher safe</p>
11547 <ul><li>Fine Bone China mug</li><li>300ml</li><li>Dishwasher and microwave safe</li></ul>
11548 <ul><li>Fine Bone China mug </li><li>300ml</li><li>Dishwasher and microwave safe</li></ul>
11549 <ul><li>Fine Bone China mug</li><li>300ml</li><li>Dishwasher and microwave safe</li></ul>
11573 <ul><li>Grey velvet couch with 4 comfortable cushions</li><li>Scroll arms with wooden legs</li></ul>
13772
13775
13776
13781