SELECT 
  q_product_descriptions.product_id, 
  q_product_descriptions.short_description, 
  IF(
    q_product_descriptions.short_description = '', 
    q_product_descriptions.full_description, 
    ''
  ) AS full_description 
FROM 
  q_product_descriptions 
WHERE 
  q_product_descriptions.product_id IN (
    6137, 6138, 6139, 6140, 6141, 6142, 6143, 
    6144, 6145, 6146, 6147, 6148, 6149, 
    6150, 6151, 6152
  ) 
  AND q_product_descriptions.lang_code = 'en'

Query time 0.00046

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "38.41"
    },
    "table": {
      "table_name": "q_product_descriptions",
      "access_type": "range",
      "possible_keys": [
        "PRIMARY",
        "product_id"
      ],
      "key": "PRIMARY",
      "used_key_parts": [
        "product_id",
        "lang_code"
      ],
      "key_length": "9",
      "rows_examined_per_scan": 16,
      "rows_produced_per_join": 16,
      "filtered": "100.00",
      "index_condition": "((`portal`.`q_product_descriptions`.`product_id` in (6137,6138,6139,6140,6141,6142,6143,6144,6145,6146,6147,6148,6149,6150,6151,6152)) and (`portal`.`q_product_descriptions`.`lang_code` = 'en'))",
      "cost_info": {
        "read_cost": "35.21",
        "eval_cost": "3.20",
        "prefix_cost": "38.41",
        "data_read_per_join": "61K"
      },
      "used_columns": [
        "product_id",
        "lang_code",
        "short_description",
        "full_description"
      ]
    }
  }
}

Result

product_id short_description full_description
6137 <ul class="a-unordered-list a-vertical a-spacing-none"><li><span class="a-list-item">HDMI to HDMI connection</span></li> <li><span class="a-list-item">To connect your PC to a high resolution screen or a flat screen</span></li> </ul>
6138 <ul><li>2m length</li> <li>Full 1080p support</li> <li>3D Compatible</li> <li>4K Cinema resolution</li> <li>Audio Return Channel</li> <li>Ethernet channel adds networking capabilities (Up to 10.2 Gbps speed rating)</li> <li>24K Gold-plated connectors minimize signal loss</li> <li>2-layer shielding restricts outside interference</li> </ul>
6139 <ul><li>15W USB-C Car Charger</li> <li>USB-A port</li> <li>LED light</li> <li>4ft Hardwired USB-C cable</li> <li>Sleek black design</li> </ul><p>Charge your USB-C enabled device and USB-A device quickly and efficiently while youÆ’??re in your car with this versatile car charger. The 15W USB-C connector allows for 50% faster charger compared to 5W charging* while the USB-A port also allows you to charge your legacy devices as well.</p>
6140 <ul><li>2 4 Amp 12 Watts</li> <li>Hardwired Micro USB cable</li> <li>Plugs into any wall AC power outlet</li> <li>6 ft 1 8M cable</li> <li>Sleek minimalist design</li> <li>40 percent faster than standard 5W charger</li> </ul>
6141 <ul><li>Qualcomm Quick Charge 3.0 technology provides a faster, more optimal charge</li> <li>4ft/1.2M USB-A to USB-C cable enables charging for a variety of devices</li> </ul>
6142 <ul><li>Single 18W port</li> <li>Quick Charge 3 0 with backwards compatibility for Quick Charge 2 0</li> <li>USB A port</li> <li>USB A to USB-C cable for syncing and charging</li> <li>10W charge for devices not enabled with Quick Charge</li> </ul>
6143 <ul><li>4' length</li> <li>Ultra-compact</li> <li>Plugs into any USB 2.0 port to charge</li> <li>Syncs music and pictures to/from your laptop in seconds</li> </ul>
6144 <ul><li>4' length</li> <li>Ultra-compact</li> <li>Plugs into any USB 2.0 port to charge</li> <li>Syncs music and pictures to/from your laptop in seconds</li> </ul>
6145 <ul><li>3 m length</li> <li>Ultra-compact</li> <li>Plugs into any USB 2.0 port to charge</li> <li>Syncs music and pictures to/from your laptop in seconds</li> </ul>
6146 <ul><li>Premium aluminum finish????</li> <li>Ultra-compact</li> <li>Plugs into any USB 2.0 port to charge</li> <li>Syncs music and pictures to/from your laptop in seconds</li> </ul>
6147 <ul><li>Premium aluminum finish????</li> <li>Ultra-compact</li> <li>Plugs into any USB 2.0 port to charge</li> <li>Syncs music and pictures to/from your laptop in seconds</li> </ul>
6148 <ul><li>4' length</li> <li>Ultra-compact</li> <li>Plugs into any USB 2.0 port to charge</li> <li>Syncs music and pictures to/from your laptop in seconds</li> </ul>
6149 <ul><li>4 inches length</li> <li>Ultra compact</li> <li>Plugs into any USB 2.0 port to charge</li> <li>Syncs music and pictures to/from your laptop in seconds</li> </ul>
6150 <ul><li>4' length</li> <li>Ultra-compact</li> <li>Plugs into any USB 2.0 port to charge</li> <li>Syncs music and pictures to/from your laptop in seconds</li> </ul>
6151 <ul><li>Kevlar-reinforced conductors provide added durability</li> <li>Double-braided nylon forms flexible, durable cable jacket</li> <li>Longer, flexible strain relief absorbs stress from bending to prevent breakage</li> <li>Aluminum casing protects circuit board</li> <li>Flexible insulation reduces friction</li> <li>Supports optimal 12W/2.4A charging</li> <li>2m length</li> </ul>
6152 <ul><li>Kevlar-reinforced conductors provide added durability</li> <li>Double-braided nylon forms flexible, durable cable jacket</li> <li>Longer, flexible strain relief absorbs stress from bending to prevent breakage</li> <li>Aluminum casing protects circuit board</li> <li>Flexible insulation reduces friction</li> <li>Supports optimal 12W/2.4A charging</li> <li>2m length</li> </ul>