Element sup in namespace '' encountered in a, but no template matches.

Hi, Are these messages expected? Note: Writing man7/CREATE_OPERATOR_FAMILY.7 Element sup in namespace '' encountered in a, but no template matches. Element sup in namespace '' encountered in a, but no template matches. Element sup in namespace '' encountered in a, but no template matches. Note: W

two rows are inserted by SELECT execq('INSERT INTO a SELECT x + 2 FROM a', 1)

The following documentation comment has been logged on the website: Page: https://www.postgresql.org/docs/9.6/static/spi-examples.html Description: I did some testing following this page: https://www.postgresql.org/docs/9.6/static/spi-examples.html. I got a different result. According to the w

J.2. Tool Sets/Appendix J. Documentation missing package

The following documentation comment has been logged on the website: Page: https://www.postgresql.org/docs/0.0/static/docguide-toolsets.html Description: In J.2.3 Debian Packages "docbook" and "dbtopub" missed in install command. make world works after above to package installed.