boundary/internal/db/schema/migrations/postgres/7/02_plugin.up.sql

begin;

    create domain wt_plugin_id as text
        not null
        check(
                    length(trim(value)) > 10 or value = 'pi_system'
            );
    comment on domain wt_plugin_id is
        '"pi_system", or random ID generated with github.com/hashicorp/go-secure-stdlib/base62';

    create table plugin (
        public_id wt_plugin_id primary key
    );

    comment on table plugin is
        'plugin is a table where each row represents a unique plugin registered with Boundary.';

    insert into plugin (public_id)
        values
        ('pi_system');

    create trigger immutable_columns before update on plugin
        for each row execute procedure immutable_columns('public_id');

    create or replace function
        disallow_system_plugin_deletion()
        returns trigger
    as $$
    begin
        if old.public_id = 'pi_system' then
            raise exception 'deletion of system plugin not allowed';
        end if;
        return old;
    end;
    $$ language plpgsql;

    create trigger plugin_disallow_system_deletion before delete on plugin
        for each row execute procedure disallow_system_plugin_deletion();

commit;