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-- ==============================================================
-- GNUmed database schema change script
--
-- License: GPL v2 or later
-- Author: karsten.hilbert@gmx.net
--
-- ==============================================================
\set ON_ERROR_STOP 1
--set default_transaction_read_only to off;
-- ==============================================================
\unset ON_ERROR_STOP
alter table gm.notifying_tables
drop constraint notifying_tables_schema_name_key cascade;
-- this is what PG 9.0 uses as the default constraint name:
alter table gm.notifying_tables
drop constraint notifying_tables_schema_name_table_name_key cascade;
alter table gm.notifying_tables
drop constraint unique_entry cascade;
\set ON_ERROR_STOP 1
alter table gm.notifying_tables
add constraint unique_entry
unique(schema_name, table_name, signal);
-- --------------------------------------------------------------
create or replace function gm.add_table_for_notifies(name, name, name)
returns boolean
language 'plpgsql'
as '
DECLARE
_namespace alias for $1;
_table alias for $2;
_signal alias for $3;
dummy RECORD;
BEGIN
-- does table exist ?
select relname into dummy from pg_class where
relname = _table and
relnamespace = (select oid from pg_namespace where nspname = _namespace)
;
if not found then
raise exception ''add_table_for_notifies: Table [%.%] does not exist.'', _namespace, _table;
end if;
-- make sure we can insert
delete from gm.notifying_tables where
table_name = _table
and schema_name = _namespace
and signal = _signal;
insert into gm.notifying_tables (
schema_name,
table_name,
signal
) values (
_namespace,
_table,
_signal
);
return true;
END;';
comment on function gm.add_table_for_notifies (name, name, name) is
'Mark given table for notification trigger generator.
Parameters are: (schema, table, signal name)';
-- --------------------------------------------------------------
create or replace function gm.add_table_for_notifies(name, name)
returns boolean
language SQL
as 'select gm.add_table_for_notifies($1, $2, $2);'
;
comment on function gm.add_table_for_notifies (name, name) is
'Mark given table for notification trigger generator.
Parameters are: (schema, table).
Defaults signal to table name.';
-- --------------------------------------------------------------
grant select on gm.notifying_tables to group "gm-doctors";
-- --------------------------------------------------------------
select gm.log_script_insertion('$RCSfile: v10-gm-notifying_tables-dynamic.sql,v $', '$Revision: 1.1 $');
-- ==============================================================
|
