Re: Support logical replication of DDLs

Em seg., 21 de fev. de 2022 às 13:13, Zheng Li <zhengli10(at)gmail(dot)com>
escreveu:

>
> 2. Table level
> Allows DDLs on the published tables to be replicated except for
> certain edge cases.
>
> Think how to handle triggers and functions with same name but different
purpose.

Publisher
create function public.audit() returns trigger language plpgsql as $$
begin
new.Audit_User = current_user();
new.Audit_Date_Time = now();
return new;
end;$$
create trigger audit before insert or update on foo for each row execute
procedure public.audit();

Subscriber
create function public.audit() returns trigger language plpgsql as $$
begin
insert into Audit(Audit_Date_Time, Audit_User, Schema_Name, Table_Name,
Audit_Action, Field_Values) values(new.Audit_ts, new.Audit_User,
tg_table_schema, tg_table_name, tg_op, row_to_json(case when tg_op =
'DELETE' then old.* else new.* end));
return null;
end;$$
create trigger audit after insert or update or delete on foo for each row
execute procedure public.audit();

regards,
Marcos