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 (
    94215, 94216, 94217, 94218, 94219, 94220, 
    94221, 94222, 94223, 94224, 94225, 
    94226, 94227, 94228, 94229, 94230, 
    94231, 94232, 94233, 94234, 94235, 
    94236, 94237, 94238, 94239, 94240, 
    94241, 94242, 94243, 94244, 94245, 
    94246, 94247, 94248, 94249, 94250, 
    94251, 94252, 94253, 94254, 94255, 
    94256, 94257, 94258, 94259, 94260, 
    94261, 94262, 94263, 94264, 94265, 
    94266, 94267, 94268, 94269, 94270, 
    94271, 94272, 94273, 94274, 94275, 
    94276, 94277, 94278, 94279, 94280, 
    94281, 94282, 94283, 94284, 94285, 
    94286, 94287, 94288, 94289, 94290, 
    94291, 94292, 94293, 94294, 94295, 
    94296, 94297, 94298, 94299, 94300, 
    94301, 94302, 94303, 94304, 94305, 
    94306, 94307, 94308, 94309, 94310
  ) 
  AND cscart_product_descriptions.lang_code = 'en'

Query time 0.00152

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "43.24"
    },
    "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": 96,
      "rows_produced_per_join": 96,
      "filtered": "100.00",
      "cost_info": {
        "read_cost": "33.64",
        "eval_cost": "9.60",
        "prefix_cost": "43.24",
        "data_read_per_join": "366K"
      },
      "used_columns": [
        "product_id",
        "lang_code",
        "short_description",
        "full_description"
      ],
      "attached_condition": "((`nuie_scalesta_net`.`cscart_product_descriptions`.`product_id` in (94215,94216,94217,94218,94219,94220,94221,94222,94223,94224,94225,94226,94227,94228,94229,94230,94231,94232,94233,94234,94235,94236,94237,94238,94239,94240,94241,94242,94243,94244,94245,94246,94247,94248,94249,94250,94251,94252,94253,94254,94255,94256,94257,94258,94259,94260,94261,94262,94263,94264,94265,94266,94267,94268,94269,94270,94271,94272,94273,94274,94275,94276,94277,94278,94279,94280,94281,94282,94283,94284,94285,94286,94287,94288,94289,94290,94291,94292,94293,94294,94295,94296,94297,94298,94299,94300,94301,94302,94303,94304,94305,94306,94307,94308,94309,94310)) and (`nuie_scalesta_net`.`cscart_product_descriptions`.`lang_code` = 'en'))"
    }
  }
}