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, 
  cscart_product_descriptions.unit_name 
FROM 
  cscart_product_descriptions 
WHERE 
  cscart_product_descriptions.product_id IN (
    447690, 447708, 447721, 447749, 447757, 
    447573, 447574, 447579, 447585, 447595, 
    447602, 447605, 447611, 447614, 447624, 
    447637, 447640, 447660, 447462, 447465, 
    447478, 447490, 447503, 447507, 447518, 
    447520, 447521, 447534, 447548, 447560, 
    447374, 447385, 447403, 447422, 447431, 
    447441, 447269, 447272, 447289, 447293, 
    447296, 447302, 447312, 447321, 447332, 
    447353, 447356, 447176, 447216, 447238, 
    447258, 447088, 447102, 447128, 447132, 
    447154, 446961, 446963, 446965, 446981, 
    446982, 447013, 447040, 446866, 446892, 
    446898, 446901, 446914, 446929, 446944, 
    446945, 446957, 446772, 446789, 446798, 
    446799, 446814, 446828, 446841, 446847, 
    446683, 446685, 446694, 446699, 446703, 
    446714, 446751, 446577, 446585, 446586, 
    446606, 446627, 446645, 446646, 446647, 
    446655
  ) 
  AND cscart_product_descriptions.lang_code = 'en'

Query time 0.00226

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost": 0.16771496,
    "nested_loop": [
      {
        "table": {
          "table_name": "cscart_product_descriptions",
          "access_type": "range",
          "possible_keys": ["PRIMARY", "product_id"],
          "key": "PRIMARY",
          "key_length": "9",
          "used_key_parts": ["product_id", "lang_code"],
          "loops": 1,
          "rows": 96,
          "cost": 0.16771496,
          "filtered": 100,
          "attached_condition": "cscart_product_descriptions.product_id in (447690,447708,447721,447749,447757,447573,447574,447579,447585,447595,447602,447605,447611,447614,447624,447637,447640,447660,447462,447465,447478,447490,447503,447507,447518,447520,447521,447534,447548,447560,447374,447385,447403,447422,447431,447441,447269,447272,447289,447293,447296,447302,447312,447321,447332,447353,447356,447176,447216,447238,447258,447088,447102,447128,447132,447154,446961,446963,446965,446981,446982,447013,447040,446866,446892,446898,446901,446914,446929,446944,446945,446957,446772,446789,446798,446799,446814,446828,446841,446847,446683,446685,446694,446699,446703,446714,446751,446577,446585,446586,446606,446627,446645,446646,446647,446655) and cscart_product_descriptions.lang_code = 'en'"
        }
      }
    ]
  }
}

Result

product_id short_description full_description unit_name
446577 Max Mixer 672 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446585 Prime Laptop 763 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446586 Ultra Router 400 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446606 Ultra Grinder 706 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446627 Lite Laptop 257 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446645 Mini Book 554 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446646 Classic Sneakers 238 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446647 Prime Drone 301 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446655 Eco Drone 562 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446683 Classic Phone 764 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446685 Eco Book 895 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446694 Smart Grinder 241 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446699 Classic Laptop 279 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446703 Pro Grinder 982 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446714 Classic Drone 554 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446751 Classic Headphones 740 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446772 Ultra Headphones 155 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446789 Classic Laptop 753 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446798 Ultra Shirt 278 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446799 Smart Shirt 731 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446814 Classic Watch 192 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446828 Max Bottle 652 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446841 Pro Drone 683 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446847 Pro Phone 476 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446866 Mini Bottle 430 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446892 Eco Backpack 868 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446898 Pro Mixer 625 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446901 Max Mixer 151 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446914 Max Sneakers 148 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446929 Pro Sofa 967 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446944 Prime Backpack 140 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446945 Eco Drone 720 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446957 Lite Headphones 730 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446961 Mini Drone 560 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446963 Mini Grinder 662 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446965 Eco Watch 669 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446981 Pro Book 973 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
446982 Lite Grinder 627 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447013 Smart Chair 508 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447040 Eco Mixer 677 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447088 Max Headphones 798 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447102 Eco Bottle 741 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447128 Eco Backpack 609 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447132 Lite Chair 782 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447154 Lite Shirt 702 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447176 Ultra Drone 310 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447216 Classic Mixer 805 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447238 Pro Router 117 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447258 Prime Laptop 677 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447269 Pro Camera 278 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447272 Max Backpack 327 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447289 Eco Chair 698 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447293 Lite Bottle 190 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447296 Lite Camera 140 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447302 Ultra Chair 906 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447312 Max Grinder 936 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447321 Lite Book 763 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447332 Max Sneakers 414 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447353 Classic Phone 647 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447356 Lite Laptop 498 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447374 Ultra Bottle 796 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447385 Ultra Headphones 407 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447403 Mini Phone 956 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447422 Ultra Bottle 252 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447431 Smart Shirt 862 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447441 Pro Sneakers 417 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447462 Prime Backpack 294 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447465 Eco Bottle 914 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447478 Pro Grinder 467 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447490 Lite Book 135 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447503 Eco Phone 156 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447507 Lite Shirt 135 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447518 Lite Shirt 114 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447520 Mini Sofa 307 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447521 Mini Watch 434 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447534 Smart Shirt 715 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447548 Classic Watch 762 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447560 Ultra Phone 277 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447573 Ultra Chair 977 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447574 Prime Camera 973 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447579 Ultra Bottle 142 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447585 Ultra Headphones 570 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447595 Ultra Laptop 933 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447602 Max Sneakers 678 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447605 Classic Shirt 513 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447611 Prime Book 890 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447614 Eco Phone 875 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447624 Classic Book 414 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447637 Max Mixer 669 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447640 Mini Backpack 277 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447660 Mini Mixer 287 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447690 Prime Shirt 499 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447708 Lite Sofa 968 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447721 Classic Bottle 418 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447749 Prime Book 948 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.
447757 Max Sofa 846 — high quality, tested and ready to ship. Generated sample data for CS-Cart import.