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 (
    95219, 95220, 95221, 95222, 95223, 95224, 
    95225, 95226, 95227, 95228, 95229, 
    95230, 95231, 95232, 95233, 95234, 
    95235, 95236, 95237, 95238, 95239, 
    95240, 95241, 95242, 95243, 95244, 
    95245, 95970, 95971, 95972, 95973, 
    95974, 95975, 95976, 96050, 96051, 
    96052, 96053, 96054, 96055, 96056, 
    96057, 96058, 96059, 96060, 96061, 
    96062, 96063
  ) 
  AND cscart_product_descriptions.lang_code = 'en'

Query time 0.00043

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "21.63"
    },
    "table": {
      "table_name": "cscart_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": 48,
      "rows_produced_per_join": 48,
      "filtered": "100.00",
      "cost_info": {
        "read_cost": "16.83",
        "eval_cost": "4.80",
        "prefix_cost": "21.63",
        "data_read_per_join": "183K"
      },
      "used_columns": [
        "product_id",
        "lang_code",
        "short_description",
        "full_description"
      ],
      "attached_condition": "((`nuie_scalesta_net`.`cscart_product_descriptions`.`product_id` in (95219,95220,95221,95222,95223,95224,95225,95226,95227,95228,95229,95230,95231,95232,95233,95234,95235,95236,95237,95238,95239,95240,95241,95242,95243,95244,95245,95970,95971,95972,95973,95974,95975,95976,96050,96051,96052,96053,96054,96055,96056,96057,96058,96059,96060,96061,96062,96063)) and (`nuie_scalesta_net`.`cscart_product_descriptions`.`lang_code` = 'en'))"
    }
  }
}