1.95. setaddsequence( integer, integer, text, text )

Function Properties

Language: PLPGSQL

Return Type: bigint

setAddSequence (set_id, seq_id, seq_fqname, seq_comment) On the origin node for set set_id, add sequence seq_fqname to the replication set, and raise SET_ADD_SEQUENCE to cause this to replicate to subscriber nodes.

declare
	p_set_id			alias for $1;
	p_seq_id			alias for $2;
	p_fqname			alias for $3;
	p_seq_comment		alias for $4;
	v_set_origin		int4;
begin
	-- ----
	-- Grab the central configuration lock
	-- ----
	lock table sl_config_lock;

	-- ----
	-- Check that we are the origin of the set
	-- ----
	select set_origin into v_set_origin
			from sl_set
			where set_id = p_set_id;
	if not found then
		raise exception 'Slony-I: setAddSequence(): set % not found', p_set_id;
	end if;
	if v_set_origin != getLocalNodeId('_schemadoc') then
		raise exception 'Slony-I: setAddSequence(): set % has remote origin - submit to origin node', p_set_id;
	end if;

	if exists (select true from sl_subscribe
			where sub_set = p_set_id)
	then
		raise exception 'Slony-I: cannot add sequence to currently subscribed set %',
				p_set_id;
	end if;

	-- ----
	-- Add the sequence to the set and generate the SET_ADD_SEQUENCE event
	-- ----
	perform setAddSequence_int(p_set_id, p_seq_id, p_fqname,
			p_seq_comment);
	return  createEvent('_schemadoc', 'SET_ADD_SEQUENCE',
						p_set_id::text, p_seq_id::text, 
						p_fqname::text, p_seq_comment::text);
end;