针对源的选项 Signed-By 设置了冲突的值https://apt.postgresql.org/pub/repos/apt/focal-pgdg：/usr/share/postgresql-common/pgdg/apt.postgresql.org.asc != /usr/share/postgresql-common/pgdg/apt.postgresql.org.gpg E：无法读取源列表。
我尝试在 ubuntu 上安装 postgresql 后无法更新或升级
针对源的选项 Signed-By 设置了冲突的值https://apt.postgresql.org/pub/repos/apt/focal-pgdg：/usr/share/postgresql-common/pgdg/apt.postgresql.org.asc != /usr/share/postgresql-common/pgdg/apt.postgresql.org.gpg E：无法读取源列表。