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>6.53. dropnode(integer)</A
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><P
> <P
><B
>Function Properties</B
></P
><P
><B
>Language: </B
>PLPGSQL</P
><P
><B
>Return Type: </B
>bigint</P
>
generate DROP_NODE event to drop node node_id from replication
</P><PRE
CLASS="PROGRAMLISTING"
>declare
p_no_id alias for $1;
v_node_row record;
begin
-- ----
-- Grab the central configuration lock
-- ----
lock table sl_config_lock;
-- ----
-- Check that this got called on a different node
-- ----
if p_no_id = getLocalNodeId('_schemadoc') then
raise exception 'Slony-I: DROP_NODE cannot initiate on the dropped node';
end if;
select * into v_node_row from sl_node
where no_id = p_no_id
for update;
if not found then
raise exception 'Slony-I: unknown node ID %', p_no_id;
end if;
-- ----
-- Make sure we do not break other nodes subscriptions with this
-- ----
if exists (select true from sl_subscribe
where sub_provider = p_no_id)
then
raise exception 'Slony-I: Node % is still configured as a data provider',
p_no_id;
end if;
-- ----
-- Make sure no set originates there any more
-- ----
if exists (select true from sl_set
where set_origin = p_no_id)
then
raise exception 'Slony-I: Node % is still origin of one or more sets',
p_no_id;
end if;
-- ----
-- Call the internal drop functionality and generate the event
-- ----
perform dropNode_int(p_no_id);
return createEvent('_schemadoc', 'DROP_NODE',
p_no_id::text);
end;</PRE
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