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>6.101. setaddtable_int(integer, integer, text, name, text)</A
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><P
>       <P
><B
>Function Properties</B
></P
><P
><B
>Language: </B
>PLPGSQL</P
><P
><B
>Return Type: </B
>integer</P
>
 
       setAddTable_int (set_id, tab_id, tab_fqname, tab_idxname, tab_comment)

This function processes the SET_ADD_TABLE event on remote nodes,
adding a table to replication if the remote node is subscribing to its
replication set.
        </P><PRE
CLASS="PROGRAMLISTING"
>declare

	p_set_id		alias for $1;
	p_tab_id		alias for $2;
	p_fqname		alias for $3;
	p_tab_idxname		alias for $4;
	p_tab_comment		alias for $5;
	v_tab_relname		name;
	v_tab_nspname		name;
	v_local_node_id		int4;
	v_set_origin		int4;
	v_sub_provider		int4;
	v_relkind		char;
	v_tab_reloid		oid;
	v_pkcand_nn		boolean;
	v_prec			record;
begin
	-- ----
	-- Grab the central configuration lock
	-- ----
	lock table sl_config_lock;

	-- ----
	-- For sets with a remote origin, check that we are subscribed 
	-- to that set. Otherwise we ignore the table because it might 
	-- not even exist in our database.
	-- ----
	v_local_node_id := getLocalNodeId('_schemadoc');
	select set_origin into v_set_origin
			from sl_set
			where set_id = p_set_id;
	if not found then
		raise exception 'Slony-I: setAddTable_int(): set % not found',
				p_set_id;
	end if;
	if v_set_origin != v_local_node_id then
		select sub_provider into v_sub_provider
				from sl_subscribe
				where sub_set = p_set_id
				and sub_receiver = getLocalNodeId('_schemadoc');
		if not found then
			return 0;
		end if;
	end if;
	
	-- ----
	-- Get the tables OID and check that it is a real table
	-- ----
	select PGC.oid, PGC.relkind, PGC.relname, PGN.nspname into v_tab_reloid, v_relkind, v_tab_relname, v_tab_nspname
			from &quot;pg_catalog&quot;.pg_class PGC, &quot;pg_catalog&quot;.pg_namespace PGN
			where PGC.relnamespace = PGN.oid
			and slon_quote_input(p_fqname) = slon_quote_brute(PGN.nspname) ||
					'.' || slon_quote_brute(PGC.relname);
	if not found then
		raise exception 'Slony-I: setAddTable_int(): table % not found', 
				p_fqname;
	end if;
	if v_relkind != 'r' then
		raise exception 'Slony-I: setAddTable_int(): % is not a regular table',
				p_fqname;
	end if;

	if not exists (select indexrelid
			from &quot;pg_catalog&quot;.pg_index PGX, &quot;pg_catalog&quot;.pg_class PGC
			where PGX.indrelid = v_tab_reloid
				and PGX.indexrelid = PGC.oid
				and PGC.relname = p_tab_idxname)
	then
		raise exception 'Slony-I: setAddTable_int(): table % has no index %',
				p_fqname, p_tab_idxname;
	end if;

	-- ----
	-- Verify that the columns in the PK (or candidate) are not NULLABLE
	-- ----

	v_pkcand_nn := 'f';
	for v_prec in select attname from &quot;pg_catalog&quot;.pg_attribute where attrelid = 
                        (select oid from &quot;pg_catalog&quot;.pg_class where oid = v_tab_reloid) 
                    and attname in (select attname from &quot;pg_catalog&quot;.pg_attribute where 
                                    attrelid = (select oid from &quot;pg_catalog&quot;.pg_class PGC, 
                                    &quot;pg_catalog&quot;.pg_index PGX where 
                                    PGC.relname = p_tab_idxname and PGX.indexrelid=PGC.oid and
                                    PGX.indrelid = v_tab_reloid)) and attnotnull &lt;&gt; 't'
	loop
		raise notice 'Slony-I: setAddTable_int: table % PK column % nullable', p_fqname, v_prec.attname;
		v_pkcand_nn := 't';
	end loop;
	if v_pkcand_nn then
		raise exception 'Slony-I: setAddTable_int: table % not replicable!', p_fqname;
	end if;

	select * into v_prec from sl_table where tab_id = p_tab_id;
	if not found then
		v_pkcand_nn := 't';  -- No-op -- All is well
	else
		raise exception 'Slony-I: setAddTable_int: table id % has already been assigned!', p_tab_id;
	end if;

	-- ----
	-- Add the table to sl_table and create the trigger on it.
	-- ----
	insert into sl_table
			(tab_id, tab_reloid, tab_relname, tab_nspname, 
			tab_set, tab_idxname, tab_altered, tab_comment) 
			values
			(p_tab_id, v_tab_reloid, v_tab_relname, v_tab_nspname,
			p_set_id, p_tab_idxname, false, p_tab_comment);
	perform alterTableAddTriggers(p_tab_id);

	return p_tab_id;
end;</PRE
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