SELECT 
  product_descriptions.product_id, 
  product_descriptions.short_description, 
  IF(
    product_descriptions.short_description = '' 
    OR product_descriptions.short_description IS NULL, 
    product_descriptions.full_description, 
    ''
  ) AS full_description 
FROM 
  product_descriptions 
WHERE 
  product_descriptions.product_id IN (
    426805, 315364, 328564, 424925, 323844, 
    332524, 342324, 348364, 365524, 433405, 
    318004, 346284
  ) 
  AND product_descriptions.lang_code = 'en'

Query time 0.00487

JSON explain

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      "key_length": "11",
      "rows_examined_per_scan": 12,
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      "filtered": "100.00",
      "cost_info": {
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        "data_read_per_join": "61K"
      },
      "used_columns": [
        "product_id",
        "lang_code",
        "short_description",
        "full_description"
      ],
      "attached_condition": "((`goimagine`.`product_descriptions`.`product_id` in (426805,315364,328564,424925,323844,332524,342324,348364,365524,433405,318004,346284)) and (`goimagine`.`product_descriptions`.`lang_code` = 'en'))"
    }
  }
}

Result

product_id short_description full_description
315364 <p>2 pair of hand knit felted cozy boot style slippers. &nbsp;These are about 8.5 to 9.5 for size; they are loose on my 8.5 narrow foot. &nbsp; They are made of 100 % wool yarn. &nbsp;The earth toned slippers have a little glitz on the top. &nbsp;The earth toned slippers measure about 10.5", the striped pair about 11.5. &nbsp;They are thicker than plain knitted.<br>If &nbsp;they should need cleaning, do not machine wash or use hot or cold water! &nbsp;They will change size if you do. &nbsp;A gentle hand wash in warm water is best. &nbsp;Please check your foot size against the measurement to make sure before ordering, as normally I do not take returns But do let me know if there is a problem, as there are exceptions.</p> <p></p>
318004 <p>2 pair of hand knit felted cozy boot style slippers. &nbsp;These are about 8.5 to 9.5 for size; they are loose on my 8.5 narrow foot. &nbsp; They are made of 100 % wool yarn. &nbsp;The earth toned slippers have a little glitz on the top. &nbsp;The earth toned slippers measure about 10.5", the striped pair about 11.5. &nbsp;They are thicker than plain knitted.<br>If &nbsp;they should need cleaning, do not machine wash or use hot or cold water! &nbsp;They will change size if you do. &nbsp;A gentle hand wash in warm water is best. &nbsp;Please check your foot size against the measurement to make sure before ordering, as normally I do not take returns But do let me know if there is a problem, as there are exceptions.</p> <p></p>
323844 <p>2 pair of hand knit felted cozy boot style slippers. &nbsp;These are about 8.5 to 9.5 for size; they are loose on my 8.5 narrow foot. &nbsp; They are made of 100 % wool yarn. &nbsp;The earth toned slippers have a little glitz on the top. &nbsp;The earth toned slippers measure about 10.5", the striped pair about 11.5. &nbsp;They are thicker than plain knitted.<br>If &nbsp;they should need cleaning, do not machine wash or use hot or cold water! &nbsp;They will change size if you do. &nbsp;A gentle hand wash in warm water is best. &nbsp;Please check your foot size against the measurement to make sure before ordering, as normally I do not take returns But do let me know if there is a problem, as there are exceptions.</p> <p></p>
328564 <p>2 pair of hand knit felted cozy boot style slippers. &nbsp;These are about 8.5 to 9.5 for size; they are loose on my 8.5 narrow foot. &nbsp; They are made of 100 % wool yarn. &nbsp;The earth toned slippers have a little glitz on the top. &nbsp;The earth toned slippers measure about 10.5", the striped pair about 11.5. &nbsp;They are thicker than plain knitted.<br>If &nbsp;they should need cleaning, do not machine wash or use hot or cold water! &nbsp;They will change size if you do. &nbsp;A gentle hand wash in warm water is best. &nbsp;Please check your foot size against the measurement to make sure before ordering, as normally I do not take returns But do let me know if there is a problem, as there are exceptions.</p> <p></p>
332524 <p>2 pair of hand knit felted cozy boot style slippers. &nbsp;These are about 8.5 to 9.5 for size; they are loose on my 8.5 narrow foot. &nbsp; They are made of 100 % wool yarn. &nbsp;The earth toned slippers have a little glitz on the top. &nbsp;The earth toned slippers measure about 10.5", the striped pair about 11.5. &nbsp;They are thicker than plain knitted.<br>If &nbsp;they should need cleaning, do not machine wash or use hot or cold water! &nbsp;They will change size if you do. &nbsp;A gentle hand wash in warm water is best. &nbsp;Please check your foot size against the measurement to make sure before ordering, as normally I do not take returns But do let me know if there is a problem, as there are exceptions.</p> <p></p>
342324 <p>2 pair of hand knit felted cozy boot style slippers. &nbsp;These are about 8.5 to 9.5 for size; they are loose on my 8.5 narrow foot. &nbsp; They are made of 100 % wool yarn. &nbsp;The earth toned slippers have a little glitz on the top. &nbsp;The earth toned slippers measure about 10.5", the striped pair about 11.5. &nbsp;They are thicker than plain knitted.<br>If &nbsp;they should need cleaning, do not machine wash or use hot or cold water! &nbsp;They will change size if you do. &nbsp;A gentle hand wash in warm water is best. &nbsp;Please check your foot size against the measurement to make sure before ordering, as normally I do not take returns But do let me know if there is a problem, as there are exceptions.</p> <p></p>
346284 <p>2 pair of hand knit felted cozy boot style slippers. &nbsp;These are about 8.5 to 9.5 for size; they are loose on my 8.5 narrow foot. &nbsp; They are made of 100 % wool yarn. &nbsp;The earth toned slippers have a little glitz on the top. &nbsp;The earth toned slippers measure about 10.5", the striped pair about 11.5. &nbsp;They are thicker than plain knitted.<br>If &nbsp;they should need cleaning, do not machine wash or use hot or cold water! &nbsp;They will change size if you do. &nbsp;A gentle hand wash in warm water is best. &nbsp;Please check your foot size against the measurement to make sure before ordering, as normally I do not take returns But do let me know if there is a problem, as there are exceptions.</p> <p></p>
348364 <p>2 pair of hand knit felted cozy boot style slippers. &nbsp;These are about 8.5 to 9.5 for size; they are loose on my 8.5 narrow foot. &nbsp; They are made of 100 % wool yarn. &nbsp;The earth toned slippers have a little glitz on the top. &nbsp;The earth toned slippers measure about 10.5", the striped pair about 11.5. &nbsp;They are thicker than plain knitted.<br>If &nbsp;they should need cleaning, do not machine wash or use hot or cold water! &nbsp;They will change size if you do. &nbsp;A gentle hand wash in warm water is best. &nbsp;Please check your foot size against the measurement to make sure before ordering, as normally I do not take returns But do let me know if there is a problem, as there are exceptions.</p> <p></p>
365524 <p>2 pair of hand knit felted cozy boot style slippers. &nbsp;These are about 8.5 to 9.5 for size; they are loose on my 8.5 narrow foot. &nbsp; They are made of 100 % wool yarn. &nbsp;The earth toned slippers have a little glitz on the top. &nbsp;The earth toned slippers measure about 10.5", the striped pair about 11.5. &nbsp;They are thicker than plain knitted.<br>If &nbsp;they should need cleaning, do not machine wash or use hot or cold water! &nbsp;They will change size if you do. &nbsp;A gentle hand wash in warm water is best. &nbsp;Please check your foot size against the measurement to make sure before ordering, as normally I do not take returns But do let me know if there is a problem, as there are exceptions.</p> <p></p>
424925 <p>2 pair of hand knit felted cozy boot style slippers. &nbsp;These are about 8.5 to 9.5 for size; they are loose on my 8.5 narrow foot. &nbsp; They are made of 100 % wool yarn. &nbsp;The earth toned slippers have a little glitz on the top. &nbsp;The earth toned slippers measure about 10.5", the striped pair about 11.5. &nbsp;They are thicker than plain knitted.<br>If &nbsp;they should need cleaning, do not machine wash or use hot or cold water! &nbsp;They will change size if you do. &nbsp;A gentle hand wash in warm water is best. &nbsp;Please check your foot size against the measurement to make sure before ordering, as normally I do not take returns But do let me know if there is a problem, as there are exceptions.</p> <p></p>
426805 <p>2 pair of hand knit felted cozy boot style slippers. &nbsp;These are about 8.5 to 9.5 for size; they are loose on my 8.5 narrow foot. &nbsp; They are made of 100 % wool yarn. &nbsp;The earth toned slippers have a little glitz on the top. &nbsp;The earth toned slippers measure about 10.5", the striped pair about 11.5. &nbsp;They are thicker than plain knitted.<br>If &nbsp;they should need cleaning, do not machine wash or use hot or cold water! &nbsp;They will change size if you do. &nbsp;A gentle hand wash in warm water is best. &nbsp;Please check your foot size against the measurement to make sure before ordering, as normally I do not take returns But do let me know if there is a problem, as there are exceptions.</p> <p></p>
433405 <p>2 pair of hand knit felted cozy boot style slippers. &nbsp;These are about 8.5 to 9.5 for size; they are loose on my 8.5 narrow foot. &nbsp; They are made of 100 % wool yarn. &nbsp;The earth toned slippers have a little glitz on the top. &nbsp;The earth toned slippers measure about 10.5", the striped pair about 11.5. &nbsp;They are thicker than plain knitted.<br>If &nbsp;they should need cleaning, do not machine wash or use hot or cold water! &nbsp;They will change size if you do. &nbsp;A gentle hand wash in warm water is best. &nbsp;Please check your foot size against the measurement to make sure before ordering, as normally I do not take returns But do let me know if there is a problem, as there are exceptions.</p> <p></p>