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 (
    10228, 10229, 10232, 10233, 10235, 10236, 
    10242, 10243, 10244, 10245, 10246, 
    10247, 10248, 10249, 10250, 10251
  ) 
  AND cscart_product_descriptions.lang_code = 'ru'

Query time 0.00039

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 (10228,10229,10232,10233,10235,10236,10242,10243,10244,10245,10246,10247,10248,10249,10250,10251) and cscart_product_descriptions.lang_code = 'ru'"
    }
  }
}

Result

product_id short_description full_description unit_name
10228 Run assembly - front door window glass left<p>Part number 82530T1000</p><p>If you are not sure about compatibility, please contact us in advance to confirm the part number.</p>
10229 Run assembly - front door window glass right side<p>Part number 82540T1000</p><p>If you are not sure about compatibility, please contact us in advance to confirm the part number.</p>
10232 Molding assembly - front door frame, left<p>Part number 82850T1000</p><p>If you are not sure about compatibility, please contact us in advance to confirm the part number.</p>
10233 Molding assembly - front door frame, right<p>Part number 82860T1000</p><p>If you are not sure about compatibility, please contact us in advance to confirm the part number.</p>
10235 Weather strip - rear door body side, left<p>Part number 83110T1000</p><p>If you are not sure about compatibility, please contact us in advance to confirm the part number.</p>
10236 Weather strip - rear door body side, right<p>Part number 83120T1000</p><p>If you are not sure about compatibility, please contact us in advance to confirm the part number.</p>
10242 Weather strip assembly-rear door rear part, left<p>Part number 831C0T1010</p><p>If you are not sure about compatibility, please contact us in advance to confirm the part number.</p>
10243 Weather strip assembly-rear door rear parting, right<p>Part number 831D0T1010</p><p>If you are not sure about compatibility, please contact us in advance to confirm the part number.</p>
10244 Weather strip assembly-rear door belt outside, left<p>Part number 83210T1001</p><p>If you are not sure about compatibility, please contact us in advance to confirm the part number.</p>
10245 Weather strip assembly - rear door belt outside, right<p>Part number 83220T1001</p><p>If you are not sure about compatibility, please contact us in advance to confirm the part number.</p>
10246 Weather strip - rear door belt inside, left<p>Part number 83230T1000</p><p>If you are not sure about compatibility, please contact us in advance to confirm the part number.</p>
10247 Weather strip - rear door belt inside, right<p>Part number 83240T1000</p><p>If you are not sure about compatibility, please contact us in advance to confirm the part number.</p>
10248 Garnish assembly - rear door front frame, left<p>Part number 83250T1000</p><p>If you are not sure about compatibility, please contact us in advance to confirm the part number.</p>
10249 Garnish assembly - rear door front frame, right<p>Part number 83260T1000</p><p>If you are not sure about compatibility, please contact us in advance to confirm the part number.</p>
10250 Garnish assembly-rear door rear frame, left<p>Part number 83270T1000</p><p>If you are not sure about compatibility, please contact us in advance to confirm the part number.</p>
10251 Garnish assembly-rear door rear frame, right<p>Part number 83280T1000</p><p>If you are not sure about compatibility, please contact us in advance to confirm the part number.</p>