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>8.29. altertableconfiguretriggers(p_tab_id integer)</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
>
alterTableConfigureTriggers (tab_id)
Set the enable/disable configuration for the replication triggers
according to the origin of the set.
</P><PRE
CLASS="PROGRAMLISTING"
>declare
v_no_id int4;
v_tab_row record;
v_tab_fqname text;
v_n int4;
begin
-- ----
-- Grab the central configuration lock
-- ----
lock table sl_config_lock;
-- ----
-- Get our local node ID
-- ----
v_no_id := getLocalNodeId('_schemadoc');
-- ----
-- Get the sl_table row and the current tables origin.
-- ----
select T.tab_reloid, T.tab_set,
S.set_origin, PGX.indexrelid,
slon_quote_brute(PGN.nspname) || '.' ||
slon_quote_brute(PGC.relname) as tab_fqname
into v_tab_row
from sl_table T, sl_set S,
"pg_catalog".pg_class PGC, "pg_catalog".pg_namespace PGN,
"pg_catalog".pg_index PGX, "pg_catalog".pg_class PGXC
where T.tab_id = p_tab_id
and T.tab_set = S.set_id
and T.tab_reloid = PGC.oid
and PGC.relnamespace = PGN.oid
and PGX.indrelid = T.tab_reloid
and PGX.indexrelid = PGXC.oid
and PGXC.relname = T.tab_idxname
for update;
if not found then
raise exception 'Slony-I: alterTableConfigureTriggers(): Table with id % not found', p_tab_id;
end if;
v_tab_fqname = v_tab_row.tab_fqname;
-- ----
-- Configuration depends on the origin of the table
-- ----
if v_tab_row.set_origin = v_no_id then
-- ----
-- On the origin the log trigger is configured like a default
-- user trigger and the deny access trigger is disabled.
-- ----
execute 'alter table ' || v_tab_fqname ||
' enable trigger "_schemadoc_logtrigger"';
execute 'alter table ' || v_tab_fqname ||
' disable trigger "_schemadoc_denyaccess"';
perform alterTableConfigureTruncateTrigger(v_tab_fqname,
'enable', 'disable');
else
-- ----
-- On a replica the log trigger is disabled and the
-- deny access trigger fires in origin session role.
-- ----
execute 'alter table ' || v_tab_fqname ||
' disable trigger "_schemadoc_logtrigger"';
execute 'alter table ' || v_tab_fqname ||
' enable trigger "_schemadoc_denyaccess"';
perform alterTableConfigureTruncateTrigger(v_tab_fqname,
'disable', 'enable');
end if;
return p_tab_id;
end;</PRE
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