AttachNodeToPgpool () {
#pcp_attach_node is a command that permit to attach a specific postgres server (identified by 6th parameter) to pgpool.
#pcp_attach_node dont return a good error code when it fails so here if I catch "BackendError" message in stderr I presume
AttachNodeToPgpool () {
#pcp_attach_node is a command that permit to attach a specific postgres server (identified by 6th parameter) to pgpool.
#pcp_attach_node dont return a good error code when it fails so here if I catch "BackendError" message in stderr I presume