---add node
\! python @abs_srcdir@/addnode.py -t addnode -s @abs_srcdir@ -b @abs_bindir@ -g new_group_007 -n 2

---select to verify
start transaction;
update pgxc_group set is_installation = true where group_name = 'new_group_007';
update pgxc_group set is_installation = false where group_name = 'group1';
update pgxc_group set in_redistribution = 'n' where group_name = 'new_group_007';
update pgxc_group set in_redistribution = 'y' where group_name = 'group1';
commit;