Ggtcf

I created this trigger functions. It works on INSERT and UPDATE. With DELETE operations this function it is not fired. I just tried after and before and the results are the same.

Can anyone find something that justify that ?

DECLARE
v_old_data json;
v_new_data json;
BEGIN

IF (TG_OP = 'UPDATE') THEN
 v_old_data := row_to_json(OLD);
 v_new_data := row_to_json(NEW);
 INSERT INTO auditoria.auditoria_geral (audi_table,audi_user,audi_op,audi_old,audi_new,audi_query)
 VALUES (TG_TABLE_NAME::TEXT,new.clnt_autorstat,substring(TG_OP,1,1),v_old_data,v_new_data, current_query());
 RETURN NEW;
ELSIF (TG_OP = 'DELETE') THEN
 v_old_data := row_to_json(OLD);
 INSERT INTO auditoria.auditoria_geral (audi_table,audi_user,audi_op,audi_old,audi_query)
 VALUES (TG_TABLE_NAME::TEXT,old.clnt_autorstat,substring(TG_OP,1,1),v_old_data, current_query());
 RETURN null;
ELSIF (TG_OP = 'INSERT') THEN
 v_new_data := row_to_json(NEW);
 INSERT INTO auditoria.auditoria_geral (audi_table,audi_user,audi_op,audi_new,audi_query)
 VALUES (TG_TABLE_NAME::TEXT,new.clnt_autorstat,substring(TG_OP,1,1),v_new_data, current_query());
 RETURN NEW;
ELSE
 RAISE WARNING '[AUDIT.IF_MODIFIED_FUNC] - Other action occurred: %, at %',TG_OP,now();
 RETURN NULL;
END IF;

EXCEPTION
WHEN data_exception THEN
 RAISE WARNING '[AUDIT.IF_MODIFIED_FUNC] - UDF ERROR [DATA EXCEPTION] - SQLSTATE: %, SQLERRM: %',SQLSTATE,SQLERRM;
 RETURN NULL;
WHEN unique_violation THEN
 RAISE WARNING '[AUDIT.IF_MODIFIED_FUNC] - UDF ERROR [UNIQUE] - SQLSTATE: %, SQLERRM: %',SQLSTATE,SQLERRM;
 RETURN NULL;
WHEN OTHERS THEN
 RAISE WARNING '[AUDIT.IF_MODIFIED_FUNC] - UDF ERROR [OTHER] - SQLSTATE: %, SQLERRM: %',SQLSTATE,SQLERRM;
 RETURN NULL;
END;


CREATE TRIGGER auditoria_clientes
AFTER INSERT OR DELETE OR UPDATE 
ON public.clientes
FOR EACH ROW
EXECUTE PROCEDURE public.auditoria_clientes();

Added the create trigger code.

 Table "public.clientes"
 Column | Type | Modifiers
----------------------+-----------------------------+----------------------------------------------------------------
clnt_codigo | integer | not null default nextval('clientes_clnt_codigo_seq'::regclass)
clnt_primeinome | character varying(50) |
clnt_ultimonome | character varying(50) |
clnt_genero | character varying(15) |
clnt_tp_pele | character varying(50) |
clnt_dtnasc | date |
clnt_telefone | character varying(50) |
clnt_email | character varying(100) |
clnt_conhecto | character varying(50) |
clnt_obs | character varying(1000) |
clnt_status | character varying(50) |
clnt_timestamp | timestamp without time zone |
clnt_autorstat | character varying(50) |
clnt_morada | character varying(200) |
clnt_codpostal | character varying(8) |
clnt_sms | boolean | default false
clnt_generico | boolean | default false
clnt_mes | integer | default 0
clnt_tipo | character varying(50) |
clnt_lojahabitual | integer | default 0
clnt_spa | boolean | default false
clnt_telefone2 | character varying(50) |
clnt_dtcriacao | date |
clnt_timestampaceita | timestamp without time zone |
Indexes:
"CLIENTES_pkey" PRIMARY KEY, btree (clnt_codigo)
"WDIDX_CLIENTES_CLNT_DTNASC" btree (clnt_dtnasc)
"WDIDX_CLIENTES_CLNT_EMAIL" btree (clnt_email)
"WDIDX_CLIENTES_CLNT_GENERICO" btree (clnt_generico)
"WDIDX_CLIENTES_CLNT_PRIMEINOME" btree (clnt_primeinome)
"WDIDX_CLIENTES_CLNT_TELEFONE" btree (clnt_telefone)
"WDIDX_CLIENTES_CLNT_ULTIMONOME" btree (clnt_ultimonome)
"fki_codpostal" btree (clnt_codpostal)
Triggers:
auditoria_clientes AFTER INSERT OR DELETE OR UPDATE ON clientes FOR EACH ROW EXECUTE PROCEDURE auditoria_clientes()

Added the table description like asked in the comments.