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 (
    90108, 89006, 89013, 84007, 84009, 84011, 
    84013, 89010, 91307, 83963, 83965, 
    83967, 83969, 91303, 83130, 84006, 
    84008, 84010, 84012, 84035, 90089, 
    90099, 92027, 92028, 92029, 92030, 
    92031, 92032, 92033, 92035, 92036, 
    92037, 92038, 92039, 92040, 92041, 
    92115, 92116, 92117, 92118, 92119, 
    92120, 92121, 92123, 92124, 92125, 
    92126, 92127, 92128, 92129, 83962, 
    83964, 83966, 83968, 89005, 90079, 
    83111, 83121, 91296, 83101, 84107, 
    92026, 92034, 92114, 92122, 89646, 
    89524, 90075, 90062, 91297, 86380, 
    89486, 83097, 84103, 88933, 85531, 
    89620, 89633, 91300, 90067, 86220, 
    90082, 89188, 89724, 86381, 90070, 
    89177, 84745, 83089, 84096, 83104, 
    84110, 83092, 84099, 90077, 89183
  ) 
  AND cscart_product_descriptions.lang_code = 'en'

Query time 0.00160

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 (90108,89006,89013,84007,84009,84011,84013,89010,91307,83963,83965,83967,83969,91303,83130,84006,84008,84010,84012,84035,90089,90099,92027,92028,92029,92030,92031,92032,92033,92035,92036,92037,92038,92039,92040,92041,92115,92116,92117,92118,92119,92120,92121,92123,92124,92125,92126,92127,92128,92129,83962,83964,83966,83968,89005,90079,83111,83121,91296,83101,84107,92026,92034,92114,92122,89646,89524,90075,90062,91297,86380,89486,83097,84103,88933,85531,89620,89633,91300,90067,86220,90082,89188,89724,86381,90070,89177,84745,83089,84096,83104,84110,83092,84099,90077,89183)) and (`nuie_scalesta_net`.`cscart_product_descriptions`.`lang_code` = 'en'))"
    }
  }
}

Result

product_id short_description full_description
83089 nuie Arvan Wall Mounted Thermostatic Bath Shower Mixer - Chrome
83092 nuie Arvan Deck Mounted Bath Shower Mixer With Kit - Chrome
83097 nuie Arvan Deck Mounted 5 Tap Hole Bath Shower Mixer - Chrome
83101 nuie Arvan Freestanding Bath Shower Mixer - Chrome
83104 nuie Arvan Deck Mounted 4 Tap Hole Bath Shower Mixer No Spout - Chrome
83111 nuie Arvan Freestanding Bath Shower Mixer - Matt Black
83121 nuie Arvan Freestanding Bath Shower Mixer - Gunmetal
83130 nuie Arvan Freestanding Bath Shower Mixer - Brushed Brass
83962 Old London White Topaz With Lever Handle Deck Mounted Bath Shower Mixer - Chrome / White
83963 Old London White Topaz With Lever Handle Wall Mounted Bath Shower Mixer - Chrome / White
83964 Old London White Topaz With Crosshead Handle Deck Mounted Bath Shower Mixer - Chrome / White
83965 Old London White Topaz With Crosshead Handle Wall Mounted Bath Shower Mixer - Chrome / White
83966 Old London White Topaz With Lever Handle Bath Shower Mixer - Chrome / White
83967 Old London White Topaz With Lever Handle Wall Mounted Bath Shower Mixer - Chrome / White
83968 Old London White Topaz With Crosshead Handle Deck Mounted Bath Shower Mixer - Chrome / White
83969 Old London White Topaz With Crosshead Handle Wall Mounted Bath Shower Mixer - Chrome / White
84006 Old London Black Topaz With Lever Handle Bath Shower Mixer - Chrome / Black
84007 Old London Black Topaz With Lever Handle Wall Mounted Bath Shower Mixer - Chrome / Black
84008 Old London Black Topaz With Crosshead Handle Bath Shower Mixer - Chrome / Black
84009 Old London Black Topaz With Crosshead Handle Wall Mounted Bath Shower Mixer - Chrome / Black
84010 Old London Black Topaz With Lever Handle Bath Shower Mixer - Chrome / Black
84011 Old London Black Topaz With Lever Handle Wall Mounted Bath Shower Mixer - Chrome / Black
84012 Old London Black Topaz With Crosshead Handle Bath Shower Mixer - Chrome / Black
84013 Old London Black Topaz With Crosshead Handle Wall Mounted Bath Shower Mixer - Chrome / Black
84035 Old London Brass Topaz With Crosshead Handle Deck Mounted Bath Shower Mixer - Brushed Brass
84096 nuie Binsey Wall Mounted Thermostatic Bath Shower Mixer - Chrome
84099 nuie Binsey Deck Mounted Bath Shower Mixer With Kit - Chrome
84103 nuie Binsey Deck Mounted 5 Tap Hole Bath Shower Mixer - Chrome
84107 nuie Binsey Freestanding Bath Shower Mixer - Chrome
84110 nuie Binsey Deck Mounted 4 Tap Hole Bath Shower Mixer No Spout - Chrome
84745 nuie Bar Showers Thermostatic Bath Shower Mixer - Chrome
85531 Hudson Reed Drift Bath Shower Mixer - Chrome
86220 nuie Hardy Bath Shower Mixer - Chrome
86380 nuie Beaumont Luxury 3/4" Cranked Bath Shower Mixer - Chrome
86381 nuie Beaumont 1/2" Bath Shower Mixer - Chrome
88933 Hudson Reed Tec Single Lever Wall Mounted Bath Shower Mixer - Chrome
89005 Hudson Reed Floor Standing Bath Shower Mixers Tec Floor Standing Bath Shower Mixer - Chrome
89006 Hudson Reed Floor Standing Bath Shower Mixers Floor Standing Bath Shower Mixer - Chrome
89010 Hudson Reed Tec Floor Standing Bath Shower Mixer - Matt Black
89013 Hudson Reed Tec Floor Standing Bath Shower Mixer - Brushed Brass
89177 nuie Sanford Deck Mounted Bath Shower Mixer With Kit - Chrome
89183 nuie Sanford Wall Mounted Bath Shower Mixer With Kit - Chrome
89188 nuie Sanford Deck Mounted 4 Tap Hole Bath Shower Mixer No Spout - Chrome
89486 Hudson Reed Soar Bath Shower Mixer - Chrome
89524 Hudson Reed Sottile Bath Shower Mixer - Chrome
89620 Hudson Reed Tec Lever Bath Shower Mixer - Chrome
89633 Hudson Reed Tec Crosshead Bath Shower Mixer - Chrome
89646 Hudson Reed Revolution Bath Shower Mixer - Chrome
89724 nuie Vibe Bath Shower Mixer - Chrome
90062 Hudson Reed Willow Bath Shower Mixer - Chrome
90067 nuie Windon Wall Mounted Thermostatic Bath Shower Mixer - Chrome
90070 nuie Windon Deck Mounted Bath Shower Mixer With Kit - Chrome
90075 nuie Windon Deck Mounted 5 Tap Hole Bath Shower Mixer - Chrome
90077 nuie Windon Wall Mounted Bath Shower Mixer With Kit - Chrome
90079 nuie Windon Freestanding Bath Shower Mixer - Chrome
90082 nuie Windon Deck Mounted 4 Tap Hole Bath Shower Mixer No Spout - Chrome
90089 nuie Windon Freestanding Bath Shower Mixer - Matt Black
90099 nuie Windon Freestanding Bath Shower Mixer - Gunmetal
90108 nuie Windon Freestanding Bath Shower Mixer - Brushed Brass
91296 nuie Aztec Floor Standing Bath Shower Mixer with Kit - Chrome
91297 nuie Aztec Deck Mount 4 Tap Hole Bath Mixer with Kit - Chrome
91300 nuie Aztec Deck Mount Bath Shower Mixer with Kit - Chrome
91303 nuie Aztec Floor Standing Bath Shower Mixer with Kit - Matt Black
91307 nuie Aztec Floor Standing Bath Shower Mixer with Kit - Brushed Brass
92026 BC Designs Victrion Deck Mounted Crosshead Bath Shower Mixer - Chrome
92027 BC Designs Victrion Deck Mounted Crosshead Bath Shower Mixer - Brushed Chrome
92028 BC Designs Victrion Deck Mounted Crosshead Bath Shower Mixer - Brushed Copper
92029 BC Designs Victrion Deck Mounted Crosshead Bath Shower Mixer - Brushed Gold
92030 BC Designs Victrion Deck Mounted Crosshead Bath Shower Mixer - Brushed Nickel
92031 BC Designs Victrion Deck Mounted Crosshead Bath Shower Mixer - Copper
92032 BC Designs Victrion Deck Mounted Crosshead Bath Shower Mixer - Gold
92033 BC Designs Victrion Deck Mounted Crosshead Bath Shower Mixer - Nickel
92034 BC Designs Victrion Wall Mounted Crosshead Bath Shower Mixer - Chrome
92035 BC Designs Victrion Wall Mounted Crosshead Bath Shower Mixer - Brushed Chrome
92036 BC Designs Victrion Wall Mounted Crosshead Bath Shower Mixer - Brushed Copper
92037 BC Designs Victrion Wall Mounted Crosshead Bath Shower Mixer - Brushed Gold
92038 BC Designs Victrion Wall Mounted Crosshead Bath Shower Mixer - Brushed Nickel
92039 BC Designs Victrion Wall Mounted Crosshead Bath Shower Mixer - Copper
92040 BC Designs Victrion Wall Mounted Crosshead Bath Shower Mixer - Gold
92041 BC Designs Victrion Wall Mounted Crosshead Bath Shower Mixer - Nickel
92114 BC Designs Victrion Deck Mounted Lever Bath Shower Mixer - Chrome
92115 BC Designs Victrion Deck Mounted Lever Bath Shower Mixer - Brushed Chrome
92116 BC Designs Victrion Deck Mounted Lever Bath Shower Mixer - Brushed Copper
92117 BC Designs Victrion Deck Mounted Lever Bath Shower Mixer - Brushed Gold
92118 BC Designs Victrion Deck Mounted Lever Bath Shower Mixer - Brushed Nickel
92119 BC Designs Victrion Deck Mounted Lever Bath Shower Mixer - Copper
92120 BC Designs Victrion Deck Mounted Lever Bath Shower Mixer - Gold
92121 BC Designs Victrion Deck Mounted Lever Bath Shower Mixer - Nickel
92122 BC Designs Victrion Wall Mounted Lever Bath Shower Mixer - Chrome
92123 BC Designs Victrion Wall Mounted Lever Bath Shower Mixer - Brushed Chrome
92124 BC Designs Victrion Wall Mounted Lever Bath Shower Mixer - Brushed Copper
92125 BC Designs Victrion Wall Mounted Lever Bath Shower Mixer - Brushed Gold
92126 BC Designs Victrion Wall Mounted Lever Bath Shower Mixer - Brushed Nickel
92127 BC Designs Victrion Wall Mounted Lever Bath Shower Mixer - Copper
92128 BC Designs Victrion Wall Mounted Lever Bath Shower Mixer - Gold
92129 BC Designs Victrion Wall Mounted Lever Bath Shower Mixer - Nickel