sl_subscribeHolds a list of subscriptions on sets
Structure of sl_subscribe
sub_setinteger PRIMARY KEY REFERENCES sl_set
ID # (from sl_set) of the set being subscribed to
sub_providerinteger REFERENCES sl_path
ID# (from sl_node) of the node providing data
sub_receiverinteger PRIMARY KEY REFERENCES sl_path
ID# (from sl_node) of the node receiving data from the provider
sub_forwardboolean
Does this provider keep data in sl_log_1/sl_log_2 to allow it to be a provider for other nodes?
sub_activeboolean
Has this subscription been activated? This is not set on the subscriber until AFTER the subscriber has received COPY data from the provider