-- -- ADD_COORDINATOR -- -- node trying to add itself without specifying groupid => 0 should error out -- first remove the coordinator to for testing master_add_node for coordinator SELECT master_remove_node('localhost', :master_port); SELECT master_add_node('localhost', :master_port); SELECT master_add_node('localhost', :master_port, groupid => 0) AS master_nodeid \gset -- adding the same node again should return the existing nodeid SELECT master_add_node('localhost', :master_port, groupid => 0) = :master_nodeid; -- adding another node with groupid=0 should error out SELECT master_add_node('localhost', 12345, groupid => 0) = :master_nodeid; -- start_metadata_sync_to_node() for coordinator should raise a notice SELECT start_metadata_sync_to_node('localhost', :master_port);