message: Minor corrections to a few comments.
diff: @@ -321,7 +321,7 @@ void IndexArray::from_list_all(StringData value, IntegerColumn& result, const In
  namespace {
  -// Helper functions for index_string<index_FindAll_ins> for generating permutations of index keys
  +// Helper functions for index_string_all_ins for generating permutations of index keys
  // replicates the 4 least significant bits each times 8
  // eg: abcd -> aaaaaaaabbbbbbbbccccccccdddddddd
  @@ -375,7 +375,8 @@ void IndexArray::index_string_all_ins(StringData value, IntegerColumn& result, C
  const key_type upper_key = StringIndex::create_key(upper_value, string_offset);
  const key_type lower_key = StringIndex::create_key(lower_value, string_offset);
  for (int p = 0; p < num_permutations; ++p) {
  - // this might still be incorrect due to unicode characters crossing the 4 byte key size
  + // this might still be incorrect due to multi-byte unicode characters (crossing the 4 byte key size)
  + // being combined incorrectly.
  const key_type key = generate_key(upper_key, lower_key, p);
  const bool new_key = std::find(keys_seen.cbegin(), keys_seen.cend(), key) == keys_seen.cend();
  if (new_key) {
  