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 (
    92556, 92557, 86235, 86238, 86229, 89593, 
    89594, 91938, 86231, 91937, 91939, 
    91940, 91941, 91942, 91943, 86856, 
    86228, 86223, 89004, 91961, 91962, 
    91963, 91964, 91965, 91966, 91967, 
    86227, 82403, 82410, 82424, 89591, 
    89592, 86226, 86237, 86230, 91993, 
    91994, 91995, 91996, 91997, 91998, 
    91999, 82362, 91960, 82360, 91953, 
    91954, 91955, 91956, 91957, 91958, 
    91959, 84290, 82404, 82342, 82367, 
    86236, 86222, 82338, 82337, 82406, 
    82412, 82426, 86224, 91978, 91981, 
    82563, 82567, 82571, 82333, 86225, 
    91977, 91979, 91980, 91982, 91983, 
    82556, 85583, 89595, 89596, 89597, 
    82335, 82336, 82401, 82409, 82419, 
    82405, 82411, 82425, 91992, 91936, 
    91970, 91973, 86234, 82374, 91985
  ) 
  AND cscart_product_descriptions.lang_code = 'en'

Query time 0.00257

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 (92556,92557,86235,86238,86229,89593,89594,91938,86231,91937,91939,91940,91941,91942,91943,86856,86228,86223,89004,91961,91962,91963,91964,91965,91966,91967,86227,82403,82410,82424,89591,89592,86226,86237,86230,91993,91994,91995,91996,91997,91998,91999,82362,91960,82360,91953,91954,91955,91956,91957,91958,91959,84290,82404,82342,82367,86236,86222,82338,82337,82406,82412,82426,86224,91978,91981,82563,82567,82571,82333,86225,91977,91979,91980,91982,91983,82556,85583,89595,89596,89597,82335,82336,82401,82409,82419,82405,82411,82425,91992,91936,91970,91973,86234,82374,91985)) and (`nuie_scalesta_net`.`cscart_product_descriptions`.`lang_code` = 'en'))"
    }
  }
}

Result

product_id short_description full_description
82333 Hudson Reed Fixed Shower Heads Fixed Head - Chrome
82335 nuie Shower Heads Fixed Head - Chrome
82336 nuie Shower Kits Slide Rail Kit - Chrome
82337 nuie Slimline Slide Rail Kit - Chrome
82338 Hudson Reed Slide Rail Kits Linear Slide Rail Kits - Chrome
82342 Hudson Reed Slide Rail Kits Water Saving Slide Rail Kit - Chrome
82360 nuie Showers Rail Kits Slide Rail Kit - Gunmetal
82362 Hudson Reed Slide Rail Kits Kubix Slide Rail Kit - Chrome
82367 nuie Shower Kits Slider Rail Kit - Chrome
82374 nuie Outlet Elbow, Parking Bracket, Flex and Handset - Chrome
82401 Hudson Reed Fixed Shower Heads Fixed Head - Matt Black
82403 nuie Shower Kits Slide Rail Kit - Matt Black
82404 Hudson Reed Slide Rail Kits Slider Rail Kit - Chrome / Black
82405 Hudson Reed Shower Accessories Outlet Elbow, Parking Bracket, Flex and Handset - Matt Black
82406 Hudson Reed Shower Accessories Outlet Elbow, Parking Bracket, Flex and Handset - Matt Black
82409 nuie Fixed Shower Heads Square Fixed Head 200mm - Gunmetal
82410 nuie Shower Kits Square Slider Rail Kit with Elbow - Gunmetal
82411 nuie Shower Accessories Round Outlet Elbow C Wall Parking Bracket & Kit - Gunmetal
82412 nuie Shower Accessories Square Outlet Elbow C Wall Parking Bracket & Kit - Gunmetal
82419 Hudson Reed Fixed Shower Heads Fixed Head - Brushed Brass
82424 nuie Shower Kits Slide Rail Kit - Brushed Brass
82425 Hudson Reed Shower Accessories Outlet Elbow, Parking Bracket, Flex and Handset - Brushed Brass
82426 Hudson Reed Shower Accessories Outlet Elbow, Parking Bracket, Flex and Handset - Brushed Brass
82556 Hudson Reed Fixed Shower Heads Wall-Mounted Arm - Chrome
82563 nuie Fixed Shower Heads Wall-Mounted Arm - Matt Black
82567 nuie Fixed Shower Heads Small Rectangular Shower Arm - Gunmetal
82571 nuie Fixed Shower Heads Wall-Mounted Arm - Brushed Brass
84290 nuie Shower Accessories Douche Spray Kit & Thermostatic Valve - Chrome
85583 nuie Wastes & Extras Deck Shower Kit - Chrome
86222 nuie Shower Heads Fixed Head - Chrome
86223 nuie Shower Heads Fixed Head - Chrome
86224 nuie Shower Heads Fixed Head - Chrome
86225 nuie Fixed Head - Chrome
86226 Hudson Reed Fixed Shower Heads Fixed Head - Chrome
86227 Hudson Reed Fixed Shower Heads Ceiling Mounted Head & Arm - Chrome
86228 Hudson Reed Fixed Shower Heads Fixed Head - Chrome
86229 Hudson Reed Fixed Shower Heads Ceiling Mounted Head & Arm - Chrome
86230 Hudson Reed Fixed Shower Heads Fixed Head - Chrome
86231 Hudson Reed Fixed Shower Heads Fixed Head - Chrome
86234 nuie Fixed Head - Chrome
86235 Hudson Reed Fixed Shower Heads Ceiling-Mounted Fixed Head - Chrome
86236 Hudson Reed Fixed Shower Heads Ceiling Tile Fixed Head - Chrome
86237 Hudson Reed Fixed Shower Heads Ceiling Tile Fixed Head - Chrome
86238 Hudson Reed Fixed Shower Heads Ceiling Tile Fixed Head - Chrome
86856 Hudson Reed Shower Accessories Shower Seat - Chrome
89004 Hudson Reed Astra Bath Filler - Chrome
89591 nuie Shower Heads Round LED Fixed Head - Chrome
89592 nuie Shower Heads Square LED Fixed Head - Chrome
89593 nuie Shower Heads Round LED Fixed Head - Chrome
89594 nuie Shower Heads Square LED Fixed Head - Chrome
89595 nuie Shower Kits Slide Rail Kit - Matt Black
89596 nuie Shower Kits Round Slider Rail Kit with Elbow - Gunmetal
89597 nuie Shower Kits Slide Rail Kit - Brushed Brass
91936 BC Designs Victrion Traditional Slide Rail Kit and Handset - Chrome
91937 BC Designs Victrion Traditional Slide Rail Kit and Handset - Brushed Chrome
91938 BC Designs Victrion Traditional Slide Rail Kit and Handset - Brushed Copper
91939 BC Designs Victrion Traditional Slide Rail Kit and Handset - Brushed Gold
91940 BC Designs Victrion Traditional Slide Rail Kit and Handset - Brushed Nickel
91941 BC Designs Victrion Traditional Slide Rail Kit and Handset - Copper
91942 BC Designs Victrion Traditional Slide Rail Kit and Handset - Gold
91943 BC Designs Victrion Traditional Slide Rail Kit and Handset - Nickel
91953 BC Designs Victrion 8" Fixed Shower Head - Brushed Chrome
91954 BC Designs Victrion 8" Fixed Shower Head - Brushed Copper
91955 BC Designs Victrion 8" Fixed Shower Head - Brushed Gold
91956 BC Designs Victrion 8" Fixed Shower Head - Brushed Nickel
91957 BC Designs Victrion 8" Fixed Shower Head - Copper
91958 BC Designs Victrion 8" Fixed Shower Head - Gold
91959 BC Designs Victrion 8" Fixed Shower Head - Nickel
91960 BC Designs Victrion 12" Fixed Shower Head - Chrome
91961 BC Designs Victrion 12" Fixed Shower Head - Brushed Chrome
91962 BC Designs Victrion 12" Fixed Shower Head - Brushed Copper
91963 BC Designs Victrion 12" Fixed Shower Head - Brushed Gold
91964 BC Designs Victrion 12" Fixed Shower Head - Brushed Nickel
91965 BC Designs Victrion 12" Fixed Shower Head - Copper
91966 BC Designs Victrion 12" Fixed Shower Head - Gold
91967 BC Designs Victrion 12" Fixed Shower Head - Nickel
91970 BC Designs Victrion Ceiling Mounted Shower Arm - Brushed Copper
91973 BC Designs Victrion Ceiling Mounted Shower Arm - Copper
91977 BC Designs Victrion Arch Wall Mounted Shower Arm - Brushed Chrome
91978 BC Designs Victrion Arch Wall Mounted Shower Arm - Brushed Copper
91979 BC Designs Victrion Arch Wall Mounted Shower Arm - Brushed Gold
91980 BC Designs Victrion Arch Wall Mounted Shower Arm - Brushed Nickel
91981 BC Designs Victrion Arch Wall Mounted Shower Arm - Copper
91982 BC Designs Victrion Arch Wall Mounted Shower Arm - Gold
91983 BC Designs Victrion Arch Wall Mounted Shower Arm - Nickel
91985 BC Designs Victrion Straight Wall Mounted Shower Arm - Brushed Chrome
91992 BC Designs Victrion Wall Mounted Handset Shower Set - Chrome
91993 BC Designs Victrion Wall Mounted Handset Shower Set - Brushed Chrome
91994 BC Designs Victrion Wall Mounted Handset Shower Set - Brushed Copper
91995 BC Designs Victrion Wall Mounted Handset Shower Set - Brushed Gold
91996 BC Designs Victrion Wall Mounted Handset Shower Set - Brushed Nickel
91997 BC Designs Victrion Wall Mounted Handset Shower Set - Copper
91998 BC Designs Victrion Wall Mounted Handset Shower Set - Gold
91999 BC Designs Victrion Wall Mounted Handset Shower Set - Nickel
92556
92557