hiroyuki-sato opened a new issue, #46818: URL: https://github.com/apache/arrow/issues/46818
### Describe the enhancement requested This is the sub issue #46808 Since EXTRACT_ALL is set YES in Doxygen, I expect that methods without comments will also be included in the API Doc, but some methods are not documented. https://github.com/apache/arrow/blob/196cde38c112d32a944afe978b6da9c7ce935ef7/cpp/apidoc/Doxyfile#L554 [EXTRACT_ALL](https://www.doxygen.nl/manual/config.html#cfg_extract_all) > If the EXTRACT_ALL tag is set to YES, Doxygen will assume all entities in documentation are documented, even if no documentation was available. Private class members and static file members will be hidden unless the EXTRACT_PRIVATE respectively EXTRACT_STATIC tags are set to YES. For example `FixedSizeList::list_size` https://github.com/apache/arrow/blob/196cde38c112d32a944afe978b6da9c7ce935ef7/cpp/src/arrow/type.h#L1363-L1390 https://arrow.apache.org/docs/cpp/api/datatype.html#classarrow_1_1_fixed_size_list_type  ### Component(s) Documentation -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@arrow.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org