SELECT 
  product_descriptions.product_id, 
  product_descriptions.short_description, 
  IF(
    product_descriptions.short_description = '' 
    OR product_descriptions.short_description IS NULL, 
    product_descriptions.full_description, 
    ''
  ) AS full_description 
FROM 
  product_descriptions 
WHERE 
  product_descriptions.product_id IN (235884, 235883) 
  AND product_descriptions.lang_code = 'en'

Query time 0.00125

JSON explain

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    },
    "table": {
      "table_name": "product_descriptions",
      "access_type": "range",
      "possible_keys": [
        "PRIMARY",
        "product_id"
      ],
      "key": "PRIMARY",
      "used_key_parts": [
        "product_id",
        "lang_code"
      ],
      "key_length": "11",
      "rows_examined_per_scan": 2,
      "rows_produced_per_join": 2,
      "filtered": "100.00",
      "cost_info": {
        "read_cost": "1.49",
        "eval_cost": "0.20",
        "prefix_cost": "1.69",
        "data_read_per_join": "10K"
      },
      "used_columns": [
        "product_id",
        "lang_code",
        "short_description",
        "full_description"
      ],
      "attached_condition": "((`goimagine`.`product_descriptions`.`product_id` in (235884,235883)) and (`goimagine`.`product_descriptions`.`lang_code` = 'en'))"
    }
  }
}

Result

product_id short_description full_description
235883 <p>This clutch is perfect for every day use or a night on the town! At 11" x 7.5" it's not too big or small, just the right size to hold your cell phone and other essentials.&nbsp;</p> <p>The exterior is a beautiful blue and green watercolor batik with red accents and blue marble vinyl accents. The interior of the bag is made entirely of a vibrant blue waterproof canvas, making it easy to keep clean with a damp cloth. </p> <p>It features an interior zipper pocket and 6 card slots inside with a lined hand strap on the outside.</p> <p>This is handcrafted by me from the Carissa Clutch pattern by Huff n Cuffs. Message me if you'd like to order a custom clutch in this style.</p>
235884 <p>This clutch is perfect for every day use or a night on the town! At 11" x 7.5" it's not too big or small, just the right size to hold your cell phone and other essentials. <br>The exterior is a beautiful blue and green medallion cotton fabric with brown vinyl accents. The interior of the bag is made entirely of a vibrant blue waterproof canvas, making it easy to keep clean with a damp cloth. </p> <p>It features an interior zipper pocket and 6 card slots inside with a lined vinyl hand strap on the outside.</p> <p>This is handcrafted by me from the Carissa Clutch pattern by Huff n Cuffs. Message me if you'd like to order a custom clutch in this style.</p>