Content of RPM libpq-devel-13.3-1.el8_4.i686.rpm :
/usr/bin/pg_config
/usr/include/libpq
/usr/include/libpq-events.h
/usr/include/libpq-fe.h
/usr/include/libpq/libpq-fs.h
/usr/include/pg_config-i386.h
/usr/include/pg_config.h
/usr/include/pg_config_ext-i386.h
/usr/include/pg_config_ext.h
/usr/include/pg_config_manual.h
/usr/include/pg_config_os.h
/usr/include/pgsql
/usr/include/pgsql/internal
/usr/include/pgsql/internal/c.h
/usr/include/pgsql/internal/libpq
/usr/include/pgsql/internal/libpq-int.h
/usr/include/pgsql/internal/libpq/pqcomm.h
/usr/include/pgsql/internal/port.h
/usr/include/pgsql/internal/postgres_fe.h
/usr/include/pgsql/internal/pqexpbuffer.h
/usr/include/postgres_ext.h
/usr/lib/.build-id
/usr/lib/.build-id/2a
/usr/lib/.build-id/2a/d49db27845e56431fca1082c847506ad308928
/usr/lib/libpq.so
/usr/lib/pkgconfig/libpq.pc
/usr/share/locale/cs/LC_MESSAGES/pg_config-13.mo
/usr/share/locale/de/LC_MESSAGES/pg_config-13.mo
/usr/share/locale/es/LC_MESSAGES/pg_config-13.mo
/usr/share/locale/fr/LC_MESSAGES/pg_config-13.mo
/usr/share/locale/he/LC_MESSAGES/pg_config-13.mo
/usr/share/locale/it/LC_MESSAGES/pg_config-13.mo
/usr/share/locale/ja/LC_MESSAGES/pg_config-13.mo
/usr/share/locale/ko/LC_MESSAGES/pg_config-13.mo
/usr/share/locale/pl/LC_MESSAGES/pg_config-13.mo
/usr/share/locale/pt_BR/LC_MESSAGES/pg_config-13.mo
/usr/share/locale/ru/LC_MESSAGES/pg_config-13.mo
/usr/share/locale/sv/LC_MESSAGES/pg_config-13.mo
/usr/share/locale/tr/LC_MESSAGES/pg_config-13.mo
/usr/share/locale/uk/LC_MESSAGES/pg_config-13.mo
/usr/share/locale/vi/LC_MESSAGES/pg_config-13.mo
/usr/share/locale/zh_CN/LC_MESSAGES/pg_config-13.mo