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 (
    93233, 93234, 93235, 93236, 93237, 93238, 
    93239, 93240, 93241, 93242, 93243, 
    93244, 93245, 93246, 93247, 93248, 
    93249, 93250, 93251, 93252, 93253, 
    93254, 93255, 93256, 93257, 93258, 
    93259, 93260, 93261, 93262, 93263, 
    93264, 93265, 93266, 93267, 93268, 
    93269, 93270, 93271, 93272, 93273, 
    93274, 93275, 93276, 93277, 93278, 
    93279, 93362
  ) 
  AND cscart_product_descriptions.lang_code = 'en'

Query time 0.00090

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 (93233,93234,93235,93236,93237,93238,93239,93240,93241,93242,93243,93244,93245,93246,93247,93248,93249,93250,93251,93252,93253,93254,93255,93256,93257,93258,93259,93260,93261,93262,93263,93264,93265,93266,93267,93268,93269,93270,93271,93272,93273,93274,93275,93276,93277,93278,93279,93362)) and (`nuie_scalesta_net`.`cscart_product_descriptions`.`lang_code` = 'en'))"
    }
  }
}