## 1.31. ddlscript( integer, text, integer )

Function Properties
Language: PLPGSQL
Return Type: bigint

ddlScript(set_id, script, only_on_node) Generates a SYNC event, runs the script on the origin, and then generates a DDL_SCRIPT event to request it to be run on replicated slaves.

    declare
    	p_set_id			alias for $1;
    	p_script			alias for $2;
    	p_only_on_node		alias for $3;
    	v_set_origin		int4;
    begin
    	-- ----
    	-- Grab the central configuration lock
    	-- ----
    	lock table sl_config_lock;

    	-- ----
    	-- Check that the set exists and originates here
    	-- ----
    	select set_origin into v_set_origin
    			from sl_set
    			where set_id = p_set_id
    			for update;
    	if not found then
    		raise exception 'Slony-I: set % not found', p_set_id;
    	end if;
    	if v_set_origin <> getLocalNodeId('_schemadoc') then
    		raise exception 'Slony-I: set % does not originate on local node',
    				p_set_id;
    	end if;

    	-- ----
    	-- Create a SYNC event, run the script and generate the DDL_SCRIPT event
    	-- ----
    	perform createEvent('_schemadoc', 'SYNC', NULL);
    	perform ddlScript_int(p_set_id, p_script, p_only_on_node);
    	perform updateRelname(p_set_id, p_only_on_node);
    	return  createEvent('_schemadoc', 'DDL_SCRIPT',
    			p_set_id, p_script, p_only_on_node);
    end;