DROP NODE GROUP
Name
DROP NODE GROUP -- drop a group of cluster nodes
Synopsis
DROP NODE GROUP groupname
Description
Note: The following description applies only to Postgres-XC
   DROP NODE GROUP is new SQL query specific
   to Postgres-XC since 0.9.7 that deletes
   node group information in catalog pgxc_group.
  
   A group of nodes works as an alias for node lists when defining tables
   on sub-clusters.
  
Parameters
- groupname
-         The name of the selected cluster node group.
        
Examples
   Drop a cluster node group.
DROP NODE GROUP cluster_group;
  
Compatibility
   DROP NODE GROUP does not conform to the    SQL standards, it is a Postgres-XC specific command.