Hello,
I have to audit all the changes for all rows of one database.
I have a trigger that executes BEFORE any update or delete, and simply copy the
row (INSERT INTO) into the replicated table.
For example, every table has the same name plus '_audit' at the end and belongs
to the schema audit:
table public.persons => audit.persons_audit
I don't want to create specific triggers/functions for every table, so I want
to modify the table_name in the INSERT INTO, using the TG_TABLE_NAME, but I
can't make it working.
Also I can't see a working solution in the archive, and some examples are quite
messy to do, so maybe I have to rethink how I'm doing thinks or just create a
specific trigger for each table.
Here is my function, and I'm only testing now the INSERT:
...
DECLARE
tableRemote varchar;
BEGIN
IF TG_TABLE_NAME = 'assentaments' THEN
tableRemote:='audit.'||TG_TABLE_NAME||'_audit';
END IF;
--
-- Create a row in table_audit to reflect the operation performed on
emp,
-- make use of the special variable TG_OP to work out the operation.
--
IF (TG_OP = 'DELETE') THEN
EXECUTE 'INSERT INTO audit.assentaments_audit SELECT
CURRVAL(''audit_id_seq''),5, OLD.*';
RETURN OLD;
ELSIF (TG_OP = 'UPDATE') THEN
INSERT INTO tableRemote SELECT
CURRVAL('audit.audit_id_seq'),3,OLD.*;
RETURN OLD;
END IF;
RETURN NULL; -- result is ignored since this is an AFTER trigger
END;
...
thanks,
regards,
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