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, 
  cscart_product_descriptions.unit_name 
FROM 
  cscart_product_descriptions 
WHERE 
  cscart_product_descriptions.product_id IN (
    22511, 22512, 22513, 22514, 22515, 22516, 
    22517, 22518, 22519, 22520, 22521, 
    22522, 22523, 22524, 22525, 22526
  ) 
  AND cscart_product_descriptions.lang_code = 'ru'

Query time 0.00126

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "table_name": "cscart_product_descriptions",
      "access_type": "range",
      "possible_keys": ["PRIMARY", "product_id", "idx_product_lang"],
      "key": "PRIMARY",
      "key_length": "9",
      "used_key_parts": ["product_id", "lang_code"],
      "rows": 16,
      "filtered": 100,
      "index_condition": "cscart_product_descriptions.product_id in (22511,22512,22513,22514,22515,22516,22517,22518,22519,22520,22521,22522,22523,22524,22525,22526) and cscart_product_descriptions.lang_code = 'ru'"
    }
  }
}

Result

product_id short_description full_description unit_name
22511 Member - rear floor side extension outer, right<p>Part number 65944AR000</p><p>If you are not sure about compatibility, please contact us in advance to confirm the part number.</p>
22512 Support-rear suspension spring seat, right<p>Part number 65948AR000</p><p>If you are not sure about compatibility, please contact us in advance to confirm the part number.</p>
22513 Bracket assembly-2ND seat mounting rear, left<p>Part number 65953AR000</p><p>If you are not sure about compatibility, please contact us in advance to confirm the part number.</p>
22514 Bulkhead-rear floor side member NO.2, left<p>Part number 65958AR000</p><p>If you are not sure about compatibility, please contact us in advance to confirm the part number.</p>
22515 Bracket assembly-2ND seat mounting rear, right<p>Part number 65963AR000</p><p>If you are not sure about compatibility, please contact us in advance to confirm the part number.</p>
22516 Bulkhead-rear floor side member NO.2, right<p>Part number 65968AR000</p><p>If you are not sure about compatibility, please contact us in advance to confirm the part number.</p>
22517 Support-rear spare tire wheel<p>Part number 65992AR000</p><p>If you are not sure about compatibility, please contact us in advance to confirm the part number.</p>
22518 Bracket assembly - rear door scuff mounting front, left<p>Part number 659A9AR000</p><p>If you are not sure about compatibility, please contact us in advance to confirm the part number.</p>
22519 Bracket assembly - rear door scuff mounting front, right<p>Part number 659B9AR000</p><p>If you are not sure about compatibility, please contact us in advance to confirm the part number.</p>
22520 Panel Assembly-Bag<p>Part number 69100AR000</p><p>If you are not sure about compatibility, please contact us in advance to confirm the part number.</p>
22521 panel assembly<p>Part number 65523AR000</p><p>If you are not sure about compatibility, please contact us in advance to confirm the part number.</p>
22522 Panel assembly-fender, left<p>Part number 66310AR000</p><p>If you are not sure about compatibility, please contact us in advance to confirm the part number.</p>
22523 Panel assembly-fender, right<p>Part number 66320AR000</p><p>If you are not sure about compatibility, please contact us in advance to confirm the part number.</p>
22524 Panel Assy-Hood<p>Part number 66400AR000</p><p>If you are not sure about compatibility, please contact us in advance to confirm the part number.</p>
22525 Hinge assembly-hood, left<p>Part number 66910AR000</p><p>If you are not sure about compatibility, please contact us in advance to confirm the part number.</p>
22526 Hinge assembly-hood, right<p>Part number 66920AR000</p><p>If you are not sure about compatibility, please contact us in advance to confirm the part number.</p>