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>8.105. setdroptable_int(p_tab_id integer)</A
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><P
> <P
><B
>Function Properties</B
></P
><P
><B
>Language: </B
>PLPGSQL</P
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><B
>Return Type: </B
>integer</P
>
setDropTable_int (tab_id)
This function processes the SET_DROP_TABLE event on remote nodes,
dropping a table from replication if the remote node is subscribing to
its replication set.
</P><PRE
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>declare
v_set_id int4;
v_local_node_id int4;
v_set_origin int4;
v_sub_provider int4;
v_tab_reloid oid;
begin
-- ----
-- Grab the central configuration lock
-- ----
lock table sl_config_lock;
-- ----
-- Determine the set_id
-- ----
select tab_set into v_set_id from sl_table where tab_id = p_tab_id;
-- ----
-- Ensure table exists
-- ----
if not found then
return 0;
end if;
-- ----
-- 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 = v_set_id;
if not found then
raise exception 'Slony-I: setDropTable_int(): set % not found',
v_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 = v_set_id
and sub_receiver = getLocalNodeId('_schemadoc');
if not found then
return 0;
end if;
end if;
-- ----
-- Drop the table from sl_table and drop trigger from it.
-- ----
perform alterTableDropTriggers(p_tab_id);
delete from sl_table where tab_id = p_tab_id;
return p_tab_id;
end;</PRE
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