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 (
    93465, 93466, 93467, 93468, 93469, 93470, 
    93471, 93472, 93473, 93474, 93475, 
    93476, 93477, 93478, 93479, 93480, 
    93481, 93482, 93483, 93484, 93485, 
    93486, 93487, 93488, 93489, 93490, 
    93491, 93492, 93493, 93494, 93495, 
    93496, 93497, 93498, 93499, 93500, 
    93501, 93502, 93503, 93504, 93505, 
    93506, 93507, 93508, 93509, 93510, 
    93511, 93512, 93513, 93514, 93529, 
    93530, 93531, 93532, 93533, 93534, 
    93535, 93536, 93537, 93538, 93539, 
    93540, 93541, 93542, 93543, 93544, 
    93545, 93546, 93547, 93548, 93549, 
    93550, 93551, 93552, 93553, 93554, 
    93555, 93556, 93557, 93558, 93559, 
    93560, 93561, 93562, 93563, 93564, 
    93565, 93566, 93567, 93568, 93569, 
    93570, 93571, 93572, 93573, 93574
  ) 
  AND cscart_product_descriptions.lang_code = 'en'

Query time 0.00146

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "51.87"
    },
    "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": "42.27",
        "eval_cost": "9.60",
        "prefix_cost": "51.87",
        "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 (93465,93466,93467,93468,93469,93470,93471,93472,93473,93474,93475,93476,93477,93478,93479,93480,93481,93482,93483,93484,93485,93486,93487,93488,93489,93490,93491,93492,93493,93494,93495,93496,93497,93498,93499,93500,93501,93502,93503,93504,93505,93506,93507,93508,93509,93510,93511,93512,93513,93514,93529,93530,93531,93532,93533,93534,93535,93536,93537,93538,93539,93540,93541,93542,93543,93544,93545,93546,93547,93548,93549,93550,93551,93552,93553,93554,93555,93556,93557,93558,93559,93560,93561,93562,93563,93564,93565,93566,93567,93568,93569,93570,93571,93572,93573,93574)) and (`nuie_scalesta_net`.`cscart_product_descriptions`.`lang_code` = 'en'))"
    }
  }
}