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 (
    91921, 91922, 91923, 91924, 91925, 91926, 
    91927, 89440, 82416, 91913, 91914, 
    91915, 91916, 91917, 91918, 91919, 
    82415, 86854, 89438, 82398, 84262, 
    84266, 82397, 86850, 89728, 89733, 
    89158, 89549, 82334, 82339, 82349, 
    84913, 84916, 84919, 84928, 84931, 
    86390, 89436, 83086, 89122, 89161, 
    89552, 82347, 86808, 89736, 89989, 
    89990, 89991, 89992, 86811, 89098, 
    89126, 82330, 82348, 86807, 86846, 
    89732, 91292, 90094, 90104, 90113, 
    91288, 83116, 83126, 83135, 90121, 
    89200, 83143, 84122, 82447, 91284, 
    91920, 91912, 90118, 89197, 83140, 
    84119, 82364, 82363, 90117, 89196, 
    90115, 89194, 84116, 84118, 83137, 
    82390, 92842, 94078, 94686, 94690, 
    94692, 94693, 94710, 94714, 94716
  ) 
  AND cscart_product_descriptions.lang_code = 'en'

Query time 0.00280

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 (91921,91922,91923,91924,91925,91926,91927,89440,82416,91913,91914,91915,91916,91917,91918,91919,82415,86854,89438,82398,84262,84266,82397,86850,89728,89733,89158,89549,82334,82339,82349,84913,84916,84919,84928,84931,86390,89436,83086,89122,89161,89552,82347,86808,89736,89989,89990,89991,89992,86811,89098,89126,82330,82348,86807,86846,89732,91292,90094,90104,90113,91288,83116,83126,83135,90121,89200,83143,84122,82447,91284,91920,91912,90118,89197,83140,84119,82364,82363,90117,89196,90115,89194,84116,84118,83137,82390,92842,94078,94686,94690,94692,94693,94710,94714,94716)) and (`nuie_scalesta_net`.`cscart_product_descriptions`.`lang_code` = 'en'))"
    }
  }
}

Result

product_id short_description full_description
82330 Hudson Reed Tec Pura Twin Thermostatic Shower Valve - Chrome
82334 nuie Edwardian Twin Thermostatic Shower Valve - Chrome
82339 nuie Edwardian Twin Thermostatic Shower Valve - Chrome
82347 nuie Victorian Dual Thermostatic Shower Valve - Chrome
82348 nuie Victorian Dual Thermostatic Shower Valve - Chrome
82349 nuie Victorian Twin Thermostatic Shower Valve - Chrome
82363 nuie Round Showers Concealed Or Exposed Shower Valve - Chrome
82364 nuie Edwardian Manual Shower Valve - Chrome
82390 nuie Commercial Exposed Non-Concussive Valve - Chrome
82397 Hudson Reed Tec Pura Twin Thermostatic Shower Valve - Matt Black
82398 Hudson Reed Tec Pura Twin Thermostatic Shower Valve With Diverter - Matt Black
82415 Hudson Reed Tec Pura Twin Thermostatic Shower Valve - Brushed Brass
82416 Hudson Reed Tec Pura Twin Thermostatic Shower Valve With Diverter - Brushed Brass
82447 nuie Traditional Twin Exposed Shower Valve - Chrome/ White
83086 Hudson Reed Art Twin Thermostatic Shower Valve - Chrome
83116 nuie Arvan Twin Thermostatic Valve - Matt Black
83126 nuie Arvan Twin Thermostatic Valve - Gunmetal
83135 nuie Arvan Twin Thermostatic Valve - Brushed Brass
83137 nuie Arvan Manual Shower Valve - Chrome
83140 nuie Arvan Thermostatic Temperature Control Valve - Chrome
83143 nuie Arvan Twin Thermostatic Valve - Chrome
84116 nuie Binsey Manual Shower Valve - Chrome
84118 nuie Binsey Concealed Stop Tap - Chrome
84119 nuie Binsey Thermostatic Temperature Control Valve - Chrome
84122 nuie Binsey Twin Thermostatic Valve - Chrome
84262 Old London Black Topaz Twin Concealed Shower Valve - Chrome / Black
84266 Old London Black Topaz Twin Exposed Shower Valve - Chrome / Black
84913 Hudson Reed Ignite Round One Outlet Valve - Chrome
84916 Hudson Reed Ignite Square One Outlet Valve - Chrome
84919 Hudson Reed Industrial Valves Industrial Push Button Shower Valve (Single Outlet) - Chrome
84928 nuie Square Showers Square Push Button Valve - One Outlet - Chrome
84931 nuie Round Showers Round Push Button Valve - One Outlet - Chrome
86390 nuie Victorian Twin Thermostatic Shower Valve - Chrome
86807 Hudson Reed Tec Dual Concealed Thermostatic Shower Valve - Chrome
86808 Hudson Reed Tec Dual Exposed Thermostatic Shower Valve - Chrome
86811 nuie Square Showers Twin Thermostatic Shower Valve - Chrome
86846 Hudson Reed Tec Crosshead Twin Thermostatic Shower Valve - Chrome
86850 Hudson Reed Tec Crosshead Twin Thermostatic Shower Valve - Matt Black
86854 Hudson Reed Tec Crosshead Twin Thermostatic Shower Valve - Brushed Brass
89098 nuie Round Showers Twin Thermostatic Shower Valve - Chrome
89122 Hudson Reed Reign Twin Thermostatic Shower Valve - Chrome
89126 Hudson Reed Reign Twin Thermostatic Shower Valve - Chrome
89158 Hudson Reed Indus Twin Thermostatic Shower Valve - Chrome
89161 Hudson Reed Round Valves Twin Valve - Chrome
89194 nuie Sanford Manual Shower Valve - Chrome
89196 nuie Sanford Concealed Stop Tap - Chrome
89197 nuie Sanford Thermostatic Temperature Control Valve - Chrome
89200 nuie Sanford Twin Thermostatic Valve - Chrome
89436 Hudson Reed Industrial Valves Twin Valve - Chrome
89438 Hudson Reed Industrial Valves Twin Valve - Matt Black
89440 Hudson Reed Industrial Valves Twin Valve - Brushed Brass
89549 Hudson Reed Lennox Twin Thermostatic Shower Valve - Chrome
89552 Hudson Reed Square Valves Twin Valve - Chrome
89728 Old London White Topaz Twin Thermostatic Shower Valve - Chrome / White
89732 Old London White Topaz Concealed Dual Shower Valve - Chrome / White
89733 Old London White Topaz Twin Thermostatic Shower Valve - Chrome / White
89736 Old London White Topaz Exposed Dual Shower Valve - Chrome / White
89989 nuie Commercial Exposed Sequential Shower Valve - Chrome
89990 nuie Commercial Exposed Sequential Thermostatic Valve - Chrome
89991 nuie Commercial Sequential Thermostatic Shower Valve - Chrome
89992 nuie Commercial Sequential Thermostatic Shower Valve - Chrome
90094 nuie Windon Twin Thermostatic Valve - Matt Black
90104 nuie Windon Twin Thermostatic Valve - Gunmetal
90113 nuie Windon Twin Thermostatic Valve - Brushed Brass
90115 nuie Windon Manual Shower Valve - Chrome
90117 nuie Windon Concealed Stop Tap - Chrome
90118 nuie Windon Thermostatic Temperature Control Valve - Chrome
90121 nuie Windon Twin Thermostatic Valve - Chrome
91284 nuie Aztec Twin Thermostatic Concealed Shower Valve - 1 Outlet - Chrome
91288 nuie Aztec Twin Thermostatic Concealed Shower Valve - 1 Outlet - Matt Black
91292 nuie Aztec Twin Thermostatic Concealed Shower Valve - 1 Outlet - Brushed Brass
91912 BC Designs Victrion Single Outlet Twin Thermostatic Concealed Shower Valve - Chrome
91913 BC Designs Victrion Single Outlet Twin Thermostatic Concealed Shower Valve - Brushed Chrome
91914 BC Designs Victrion Single Outlet Twin Thermostatic Concealed Shower Valve - Brushed Copper
91915 BC Designs Victrion Single Outlet Twin Thermostatic Concealed Shower Valve - Brushed Gold
91916 BC Designs Victrion Single Outlet Twin Thermostatic Concealed Shower Valve - Brushed Nickel
91917 BC Designs Victrion Single Outlet Twin Thermostatic Concealed Shower Valve - Copper
91918 BC Designs Victrion Single Outlet Twin Thermostatic Concealed Shower Valve - Gold
91919 BC Designs Victrion Single Outlet Twin Thermostatic Concealed Shower Valve - Nickel
91920 BC Designs Victrion Single Outlet Twin Thermostatic Exposed Valve - Chrome
91921 BC Designs Victrion Single Outlet Twin Thermostatic Exposed Valve - Brushed Chrome
91922 BC Designs Victrion Single Outlet Twin Thermostatic Exposed Valve - Brushed Copper
91923 BC Designs Victrion Single Outlet Twin Thermostatic Exposed Valve - Brushed Gold
91924 BC Designs Victrion Single Outlet Twin Thermostatic Exposed Valve - Brushed Nickel
91925 BC Designs Victrion Single Outlet Twin Thermostatic Exposed Valve - Copper
91926 BC Designs Victrion Single Outlet Twin Thermostatic Exposed Valve - Gold
91927 BC Designs Victrion Single Outlet Twin Thermostatic Exposed Valve - Nickel
92842
94078
94686
94690
94692
94693
94710
94714
94716