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.meta_keywords, 
  cscart_product_descriptions.meta_description, 
  cscart_product_descriptions.search_words, 
  cscart_product_descriptions.promo_text, 
  cscart_product_descriptions.unit_name 
FROM 
  cscart_product_descriptions 
WHERE 
  cscart_product_descriptions.product_id IN (
    1958, 1959, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1, 
    1957, 1892, 1956, 1955, 1954, 1953, 
    1870, 1948, 1745, 1952, 1951, 1950, 
    1949, 1924, 1947, 1906, 1946, 1945, 
    1944, 1943, 1939, 1927, 1942, 1900, 
    1941, 1940, 1907, 1938, 1937, 1936, 
    1935, 1934, 1933, 1932, 1931, 1930, 
    1928, 1929, 1911, 1925, 1926, 1901, 
    1908, 1923, 1922, 1921, 1909, 1920, 
    1919, 1918, 1917, 1916, 1915, 1914, 
    1883, 1913, 1912, 1910, 1903, 1902, 
    1905, 1904, 1872, 1899, 1898, 1897, 
    1896, 1873, 1895, 1894, 1893, 1891, 
    1659, 1890, 1889, 1888, 1887, 1871, 
    1885, 1886, 1884, 1869, 1882, 1881
  ) 
  AND cscart_product_descriptions.lang_code = 'en'

Query time 0.00242

JSON explain

{
  "query_block": {
    "select_id": 1,
    "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"],
      "rows": 96,
      "filtered": 100,
      "index_condition": "cscart_product_descriptions.product_id in (1958,1959,2,3,4,5,6,7,8,9,10,1,1957,1892,1956,1955,1954,1953,1870,1948,1745,1952,1951,1950,1949,1924,1947,1906,1946,1945,1944,1943,1939,1927,1942,1900,1941,1940,1907,1938,1937,1936,1935,1934,1933,1932,1931,1930,1928,1929,1911,1925,1926,1901,1908,1923,1922,1921,1909,1920,1919,1918,1917,1916,1915,1914,1883,1913,1912,1910,1903,1902,1905,1904,1872,1899,1898,1897,1896,1873,1895,1894,1893,1891,1659,1890,1889,1888,1887,1871,1885,1886,1884,1869,1882,1881) and cscart_product_descriptions.lang_code = 'en'"
    }
  }
}

Result

product_id short_description full_description meta_keywords meta_description search_words promo_text unit_name
1
2
3
4
5
6
7
8
9
10
1659
1745
1869
1870
1871
1872
1873
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959