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 (
    86300, 86326, 86270, 86291, 86299, 86325, 
    86269, 86290, 86292, 86318, 86346, 
    86350, 86256, 86309, 86298, 86324, 
    86311, 86327, 86260, 86308, 86268, 
    86289, 86304, 86317, 86347, 86351, 
    86344, 86348, 86303, 86316, 86254, 
    86306, 86312, 86328, 86345, 86349, 
    86273, 86305, 86296, 86322, 86340, 
    86341, 86266, 86287, 86294, 86320, 
    86264, 86285, 95152, 95153, 95154, 
    95155, 95156, 95157, 95158, 95166, 
    95167, 95169, 95170, 95172, 95174, 
    95175, 95176, 95178, 95180, 95182, 
    95183, 95184, 95185, 95186, 95188, 
    95190, 95191, 95192, 95193, 95194, 
    95196, 95198, 95199, 95200, 95202, 
    95204, 95206, 95207, 95208, 95209, 
    95210, 95211, 95212, 95214, 95216, 
    95217, 95218, 95220, 95221, 95223
  ) 
  AND cscart_product_descriptions.lang_code = 'en'

Query time 0.00246

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 (86300,86326,86270,86291,86299,86325,86269,86290,86292,86318,86346,86350,86256,86309,86298,86324,86311,86327,86260,86308,86268,86289,86304,86317,86347,86351,86344,86348,86303,86316,86254,86306,86312,86328,86345,86349,86273,86305,86296,86322,86340,86341,86266,86287,86294,86320,86264,86285,95152,95153,95154,95155,95156,95157,95158,95166,95167,95169,95170,95172,95174,95175,95176,95178,95180,95182,95183,95184,95185,95186,95188,95190,95191,95192,95193,95194,95196,95198,95199,95200,95202,95204,95206,95207,95208,95209,95210,95211,95212,95214,95216,95217,95218,95220,95221,95223)) and (`nuie_scalesta_net`.`cscart_product_descriptions`.`lang_code` = 'en'))"
    }
  }
}