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NAME="FUNCTION.ENABLENODE-INT-P-NO-ID-INTEGER"
>8.66. enablenode_int(p_no_id integer)</A
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><P
> <P
><B
>Function Properties</B
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><P
><B
>Language: </B
>PLPGSQL</P
><P
><B
>Return Type: </B
>integer</P
>
no_id - Node ID #
Internal function to process the ENABLE_NODE event for node no_id
</P><PRE
CLASS="PROGRAMLISTING"
>declare
v_local_node_id int4;
v_node_row record;
v_sub_row record;
begin
-- ----
-- Check that the node is inactive
-- ----
select * into v_node_row
from sl_node
where no_id = p_no_id
for update;
if not found then
raise exception 'Slony-I: node % not found', p_no_id;
end if;
if v_node_row.no_active then
return p_no_id;
end if;
-- ----
-- Activate the node and generate sl_confirm status rows for it.
-- ----
update sl_node
set no_active = 't'
where no_id = p_no_id;
insert into sl_confirm
(con_origin, con_received, con_seqno)
select no_id, p_no_id, 0 from sl_node
where no_id != p_no_id
and no_active;
insert into sl_confirm
(con_origin, con_received, con_seqno)
select p_no_id, no_id, 0 from sl_node
where no_id != p_no_id
and no_active;
-- ----
-- Generate ENABLE_SUBSCRIPTION events for all sets that
-- origin here and are subscribed by the just enabled node.
-- ----
v_local_node_id := getLocalNodeId('_schemadoc');
for v_sub_row in select SUB.sub_set, SUB.sub_provider from
sl_set S,
sl_subscribe SUB
where S.set_origin = v_local_node_id
and S.set_id = SUB.sub_set
and SUB.sub_receiver = p_no_id
for update of S
loop
perform enableSubscription (v_sub_row.sub_set,
v_sub_row.sub_provider, p_no_id);
end loop;
return p_no_id;
end;</PRE
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