[Postgres-xc-general] postgres xc cluster query

hi, 


I am new to postgres xc. Is there a psql command that can be issued to coordinator to query the current cluster's coordinators and datanodes? I followed the setup steps and did CREATE NODE for coordinator and data nodes and they are up and running, just wonder whether a command exists that can query the current NODE and its status.


I am still reviewing pgxc_ctl tool. is this tool being widely used? I am looking for some real business use cases. Does any one know where I can find some real company adoption for postgres xc in a production environment. Thank you.

best,
Ying