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 (
    86866, 86300, 86326, 86270, 86291, 86299, 
    86325, 86244, 86269, 86290, 86292, 
    86318, 87736, 86346, 86350, 86256, 
    86309, 86369, 86374, 86298, 86324, 
    86311, 86327, 86260, 86308, 86243, 
    86378, 86246, 86268, 86289, 86304, 
    86317, 86373, 86347, 86351, 86344, 
    86348, 86376, 86303, 86316, 86254, 
    86306, 86371, 86313, 86329, 86312, 
    86328, 86245, 86345, 86349, 86259, 
    86307, 86297, 86323, 86273, 86305, 
    86377, 86296, 86322, 86372, 86375, 
    86267, 86288, 86340, 86341, 86266, 
    86287, 86302, 86315, 86294, 86320, 
    86295, 86301, 86314, 86321, 86264, 
    86285, 86265, 86286, 86293, 86319, 
    86263, 86284, 95152, 95153, 95154, 
    95155, 95156, 95157, 95158, 95165, 
    95166, 95167, 95168, 95169, 95170
  ) 
  AND cscart_product_descriptions.lang_code = 'en'

Query time 0.00104

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 (86866,86300,86326,86270,86291,86299,86325,86244,86269,86290,86292,86318,87736,86346,86350,86256,86309,86369,86374,86298,86324,86311,86327,86260,86308,86243,86378,86246,86268,86289,86304,86317,86373,86347,86351,86344,86348,86376,86303,86316,86254,86306,86371,86313,86329,86312,86328,86245,86345,86349,86259,86307,86297,86323,86273,86305,86377,86296,86322,86372,86375,86267,86288,86340,86341,86266,86287,86302,86315,86294,86320,86295,86301,86314,86321,86264,86285,86265,86286,86293,86319,86263,86284,95152,95153,95154,95155,95156,95157,95158,95165,95166,95167,95168,95169,95170)) and (`nuie_scalesta_net`.`cscart_product_descriptions`.`lang_code` = 'en'))"
    }
  }
}

Result

product_id short_description full_description
86243 nuie Square Electric Radiator 690 x 500mm (200 Watt) - Chrome
86244 nuie Square Electric Radiator 1100 x 500mm (300 Watt) - Chrome
86245 nuie Square Electric Radiator 690 x 500mm (300 Watt) - Chrome
86246 nuie Square Electric Radiator 1100 x 500mm (500 Watt) - Chrome
86254 nuie Revive Double Panel Designer Radiator 1800 x 354mm - High Gloss White
86256 nuie Revive Vertical Double Panel Radiator 1800 x 528mm - High Gloss White
86259 nuie Revive With Mirror Single Panel Radiator With Mirror 1800 x 499mm - High Gloss White
86260 nuie Revive With Mirror Double Panel Radiator With Mirror 1800 x 499mm - High Gloss White
86263 nuie Revive Horizontal Single Panel Radiator 600 x 412mm - High Gloss White
86264 nuie Revive Horizontal Double Panel Radiator 600 x 412mm - High Gloss White
86265 nuie Revive Horizontal Single Panel Radiator 600 x 586mm - High Gloss White
86266 nuie Revive Horizontal Double Panel Radiator 600 x 586mm - High Gloss White
86267 nuie Revive Horizontal Single Panel Radiator 600 x 992mm - High Gloss White
86268 nuie Revive Horizontal Double Panel Radiator 600 x 992mm - High Gloss White
86269 nuie Revive Horizontal Double Panel Radiator 600 x 1398mm - High Gloss White
86270 nuie Revive Horizontal Double Panel Radiator 600 x 1572mm - High Gloss White
86273 nuie Revive Double Panel Designer Radiator 1500 x 354mm - High Gloss White
86284 nuie Revive Horizontal Single Panel Radiator 600 x 412mm - Anthracite
86285 nuie Revive Horizontal Double Panel Radiator 600 x 412mm - Anthracite
86286 nuie Revive Horizontal Single Panel Radiator 600 x 586mm - Anthracite
86287 nuie Revive Horizontal Double Panel Radiator 600 x 586mm - Anthracite
86288 nuie Revive Horizontal Single Panel Radiator 600 x 992mm - Anthracite
86289 nuie Revive Horizontal Double Panel Radiator 600 x 992mm - Anthracite
86290 nuie Revive Horizontal Double Panel Radiator 600 x 1398mm - Anthracite
86291 nuie Revive Horizontal Double Panel Radiator 600 x 1572mm - Anthracite
86292 nuie Sloane Vertical Double Panel Radiator 1800 x 528mm - Anthracite
86293 nuie Sloane Horizontal Single Panel Radiator 600 x 412mm - Anthracite
86294 nuie Sloane Horizontal Double Panel Radiator 600 x 412mm - Anthracite
86295 nuie Sloane Horizontal Single Panel Radiator 600 x 586mm - Anthracite
86296 nuie Sloane Horizontal Double Panel Radiator 600 x 586mm - Anthracite
86297 nuie Sloane Horizontal Single Panel Radiator 600 x 992mm - Anthracite
86298 nuie Sloane Horizontal Double Panel Radiator 600 x 992mm - Anthracite
86299 nuie Sloane Horizontal Double Panel Radiator 600 x 1398mm - Anthracite
86300 nuie Sloane Horizontal Double Panel Radiator 600 x 1572mm - Anthracite
86301 nuie Sloane Vertical Single Panel 1500 x 354mm - Anthracite
86302 nuie Sloane Single Panel Designer Radiator 1800 x 354mm - Anthracite
86303 nuie Sloane Vertical Double Panel Radiator 1500 x 354mm - Anthracite
86304 nuie Sloane Double Panel Designer Radiator 1800 x 354mm - Anthracite
86305 nuie Revive Double Panel Designer Radiator 1500 x 354mm - Anthracite
86306 nuie Revive Double Panel Designer Radiator 1800 x 354mm - Anthracite
86307 nuie Revive With Mirror Single Panel Designer Radiator 1800 x 499mm - Anthracite
86308 nuie Revive With Mirror Double Panel Designer Radiator 1800 x 499mm - Anthracite
86309 nuie Revive Vertical Double Panel Radiator 1800 x 528mm - Anthracite
86311 nuie Sloane Double Panel Designer Radiator 1800 x 381mm - Anthracite
86312 nuie Xcite Xcite Designer Radiator 1775 x 450mm - Anthracite
86313 nuie Revive Wave Designer Radiator 1785 x 413mm - Anthracite
86314 nuie Sloane Single Panel Designer Radiator 1500 x 354mm - Satin White
86315 nuie Sloane Single Panel Designer Radiator 1800 x 354mm - Satin White
86316 nuie Sloane Double Panel Designer Radiator 1500 x 354mm - Satin White
86317 nuie Sloane Double Panel Designer Radiator 1800 x 354mm - Satin White
86318 nuie Sloane Vertical Double Panel Radiator 1800 x 528mm - Satin White
86319 nuie Sloane Horizontal Single Panel Radiator 600 x 412mm - Satin White
86320 nuie Sloane Horizontal Double Panel Radiator 600 x 412mm - Satin White
86321 nuie Sloane Horizontal Single Panel Radiator 600 x 586mm - Satin White
86322 nuie Sloane Horizontal Double Panel Radiator 600 x 586mm - Satin White
86323 nuie Sloane Horizontal Single Panel Radiator 600 x 992mm - Satin White
86324 nuie Sloane Horizontal Double Panel Radiator 600 x 992mm - Satin White
86325 nuie Sloane Horizontal Double Panel Radiator 600 x 1398mm - Satin White
86326 nuie Sloane Horizontal Double Panel Radiator 600 x 1572mm - Satin White
86327 nuie Sloane Double Panel Designer Radiator 1800 x 381mm - Satin White
86328 nuie Xcite Xcite Designer Radiator 1775 x 450mm - High Gloss White
86329 nuie Revive Wave Designer Radiator 1785 x 413mm - High Gloss White
86340 nuie Revive Compact Designer Radiator 1800 x 237mm - High Gloss White
86341 nuie Revive Compact Designer Radiator 1800 x 237mm - Anthracite
86344 nuie Salvia Designer Radiator 1800 x 383mm - High Gloss White
86345 nuie Salvia Designer Radiator 1500 x 383mm - High Gloss White
86346 nuie Salvia Designer Radiator 635 x 1223mm - High Gloss White
86347 nuie Salvia Designer Radiator 635 x 863mm - High Gloss White
86348 nuie Salvia Designer Radiator 1800 x 383mm - Anthracite
86349 nuie Salvia Designer Radiator 1500 x 383mm - Anthracite
86350 nuie Salvia Designer Radiator 635 x 1223mm - Anthracite
86351 nuie Salvia Designer Radiator 635 x 863mm - Anthracite
86369 Hudson Reed Heated Towel Rails Small Harrow Traditional Radiator 965 x 540mm - Chrome / White
86371 nuie Colosseum Triple Column Traditional Radiator 300 x 999mm - High Gloss White
86372 nuie Colosseum Triple Column Traditional Radiator 600 x 605mm - High Gloss White
86373 nuie Colosseum Triple Column Traditional Radiator 600 x 777mm - High Gloss White
86374 nuie Colosseum Triple Column Traditional Radiator 600 x 999mm - High Gloss White
86375 nuie Colosseum Triple Column Traditional Radiator 1500 x 287mm - High Gloss White
86376 nuie Colosseum Triple Column Traditional Radiator 1500 x 368mm - High Gloss White
86377 nuie Colosseum Triple Column Traditional Radiator 1800 x 287mm - High Gloss White
86378 nuie Colosseum Triple Column Traditional Radiator 1800 x 376mm - High Gloss White
86866 Hudson Reed Heated Towel Rails Brampton Towel Rail 1500 x 575mm - Chrome / White
87736 Hudson Reed Heated Towel Rails Harrow Traditional Radiator 965 x 673mm - Chrome / White
95152
95153
95154
95155
95156
95157
95158
95165
95166
95167
95168
95169
95170