SELECT 
  cscart_ult_product_descriptions.product_id, 
  cscart_ult_product_descriptions.short_description, 
  IF(
    cscart_ult_product_descriptions.short_description = "", 
    cscart_ult_product_descriptions.full_description, 
    ""
  ) AS full_description, 
  cscart_ult_product_descriptions.meta_keywords, 
  cscart_ult_product_descriptions.meta_description, 
  cscart_ult_product_descriptions.search_words, 
  cscart_ult_product_descriptions.promo_text 
FROM 
  cscart_ult_product_descriptions 
WHERE 
  cscart_ult_product_descriptions.product_id IN (
    403, 1414, 151, 57, 58, 29, 1947, 683, 
    1377, 1166, 358, 1167, 708, 1177, 1195, 
    1208, 1178, 1849, 1846, 1848, 1847, 
    1171, 1322, 1448, 789, 1375, 1230, 1227, 
    1770, 1769, 1420, 77, 1449, 1235, 1442, 
    1958, 67, 1252, 803, 1169, 1712, 1759, 
    1341, 1592, 1474, 1733, 1002, 1930, 
    1561, 1705, 1704, 1609, 1935, 1936, 
    1929, 1528, 1527, 1526, 1508, 1534, 
    1533, 1841, 1531, 1529, 1530, 1843, 
    1532, 1515, 1904, 1873, 1897, 1896, 
    1728, 1607, 1608, 1606, 1703, 1578, 
    1396, 1605, 1206, 1586, 1934, 1932, 
    1933, 1656, 1542, 1640, 1543, 1655, 
    1927, 1926, 1815, 1808, 1541, 1829
  ) 
  AND cscart_ult_product_descriptions.company_id = 1 
  AND cscart_ult_product_descriptions.lang_code = 'ja'

Query time 0.00266

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "table_name": "cscart_ult_product_descriptions",
      "access_type": "range",
      "possible_keys": ["PRIMARY", "product_id", "company_id"],
      "key": "PRIMARY",
      "key_length": "13",
      "used_key_parts": ["product_id", "lang_code", "company_id"],
      "rows": 96,
      "filtered": 100,
      "index_condition": "cscart_ult_product_descriptions.company_id = 1 and cscart_ult_product_descriptions.product_id in (403,1414,151,57,58,29,1947,683,1377,1166,358,1167,708,1177,1195,1208,1178,1849,1846,1848,1847,1171,1322,1448,789,1375,1230,1227,1770,1769,1420,77,1449,1235,1442,1958,67,1252,803,1169,1712,1759,1341,1592,1474,1733,1002,1930,1561,1705,1704,1609,1935,1936,1929,1528,1527,1526,1508,1534,1533,1841,1531,1529,1530,1843,1532,1515,1904,1873,1897,1896,1728,1607,1608,1606,1703,1578,1396,1605,1206,1586,1934,1932,1933,1656,1542,1640,1543,1655,1927,1926,1815,1808,1541,1829) and cscart_ult_product_descriptions.lang_code = 'ja'"
    }
  }
}

Result

product_id short_description full_description meta_keywords meta_description search_words promo_text
29
57
58
67
77
151
358
403
683
708
789
803
1002
1166
1167
1169
1171
1177
1178
1195
1206
1208
1227
1230
1235
1252
1322
1341
1375
1377
1396
1414
1420
1442
1448
1449
1474
1508
1515
1526
1527
1528
1529
1530
1531
1532
1533
1534
1541
1542
1543
1561
1578
1586
1592
1605
1606
1607
1608
1609
1640
1655
1656
1703
1704
1705
1712
1728
1733
1759
1769
1770
1808
1815
1829
1841
1843
1846
1847
1848
1849
1873
1896
1897
1904
1926
1927
1929
1930
1932
1933
1934
1935
1936
1947
1958