Todd Knight
ec6151d174
Create Schema Manager and propagate contexts into the DB calls downstream. Add checks at controller startup and database init for correct schema version and schema migration dirty bit being set.
29 lines
824 B
PL/PgSQL
29 lines
824 B
PL/PgSQL
begin;
|
|
|
|
-- kms_version_column() will increment the version column whenever row data
|
|
-- is inserted and should only be used in an before insert trigger. This
|
|
-- function will overwrite any explicit values to the version column.
|
|
create or replace function
|
|
kms_version_column()
|
|
returns trigger
|
|
as $$
|
|
declare
|
|
_key_id text;
|
|
_max bigint;
|
|
begin
|
|
execute format('SELECT $1.%I', tg_argv[0]) into _key_id using new;
|
|
execute format('select max(version) + 1 from %I where %I = $1', tg_relid::regclass, tg_argv[0]) using _key_id into _max;
|
|
if _max is null then
|
|
_max = 1;
|
|
end if;
|
|
new.version = _max;
|
|
return new;
|
|
end;
|
|
$$ language plpgsql;
|
|
|
|
comment on function
|
|
kms_version_column()
|
|
is
|
|
'function used in before insert triggers to properly set version columns for kms_* tables with a version column';
|
|
|
|
commit; |