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 (
    87759, 88019, 87992, 88001, 88005, 87939, 
    87989, 88594, 87943, 87973, 87999, 
    90808, 87965, 88014, 88020, 92893, 
    92894, 93002, 93003, 93004, 93005, 
    93006, 93007, 93008, 93009, 93010, 
    93011, 93012, 93013, 93014, 93015, 
    93341, 93342, 93343, 93344, 93345, 
    93346, 93347, 93348, 93349, 93350, 
    93351, 93352, 93353, 93354, 93355, 
    93750, 93751, 93752, 93792, 93793, 
    93794, 93848, 93849, 93886, 93887, 
    93888, 93889, 93890, 93891, 93892, 
    93893, 94119, 94120, 94121, 94122, 
    94123, 94124, 94125, 94126, 94127, 
    94128, 94129, 94130, 94131, 94132, 
    94133, 94134, 94135, 94136, 94137, 
    94138, 94139, 94457, 94484, 94485, 
    94486, 94487, 94488, 94489, 94490, 
    94491, 94492, 94493, 94494, 94495
  ) 
  AND cscart_product_descriptions.lang_code = 'en'

Query time 0.00169

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 (87759,88019,87992,88001,88005,87939,87989,88594,87943,87973,87999,90808,87965,88014,88020,92893,92894,93002,93003,93004,93005,93006,93007,93008,93009,93010,93011,93012,93013,93014,93015,93341,93342,93343,93344,93345,93346,93347,93348,93349,93350,93351,93352,93353,93354,93355,93750,93751,93752,93792,93793,93794,93848,93849,93886,93887,93888,93889,93890,93891,93892,93893,94119,94120,94121,94122,94123,94124,94125,94126,94127,94128,94129,94130,94131,94132,94133,94134,94135,94136,94137,94138,94139,94457,94484,94485,94486,94487,94488,94489,94490,94491,94492,94493,94494,94495)) and (`nuie_scalesta_net`.`cscart_product_descriptions`.`lang_code` = 'en'))"
    }
  }
}