8.73. forwardconfirm(p_con_timestamp integer, p_con_seqno integer, p_con_received bigint, p_con_origin timestamp without time zone)

Function Properties

Language: PLPGSQL

Return Type: bigint

forwardConfirm (p_con_origin, p_con_received, p_con_seqno, p_con_timestamp) Confirms (recorded in sl_confirm) that items from p_con_origin up to p_con_seqno have been received by node p_con_received as of p_con_timestamp, and raises an event to forward this confirmation.

declare
	v_max_seqno		bigint;
begin
	select into v_max_seqno coalesce(max(con_seqno), 0)
			from sl_confirm
			where con_origin = p_con_origin
			and con_received = p_con_received;
	if v_max_seqno < p_con_seqno then
		insert into sl_confirm 
				(con_origin, con_received, con_seqno, con_timestamp)
				values (p_con_origin, p_con_received, p_con_seqno,
					p_con_timestamp);
		v_max_seqno = p_con_seqno;
	end if;

	return v_max_seqno;
end;