Re: basic trigger using OLD not working?
От | Rick Casey |
---|---|
Тема | Re: basic trigger using OLD not working? |
Дата | |
Msg-id | 421E5A47.4050406@colorado.edu обсуждение исходный текст |
Ответ на | Re: basic trigger using OLD not working? (Tom Lane <tgl@sss.pgh.pa.us>) |
Список | pgsql-general |
Thanks much! That met with partial success; but getting closer.
The error message about OLD went away (thankfully!), but there is still no data from the OLD variable. Here is the code again:
create trigger PEDIGREES_hist_del_trig
AFTER DELETE
on PEDIGREES
FOR EACH ROW
EXECUTE PROCEDURE logPedigreesDel();
CREATE OR REPLACE FUNCTION logPedigreesDel() RETURNS TRIGGER AS '
begin
RAISE EXCEPTION ''OLD.famindid = '', OLD.famindid;
return OLD;
end;
' LANGUAGE plpgsql;
Which when it fires results in:
cgb_lab_data=# \i testphdtrig.sql
psql:testphdtrig.sql:1: ERROR: OLD.famindid =
Regards,
rick
Tom Lane wrote:
The error message about OLD went away (thankfully!), but there is still no data from the OLD variable. Here is the code again:
create trigger PEDIGREES_hist_del_trig
AFTER DELETE
on PEDIGREES
FOR EACH ROW
EXECUTE PROCEDURE logPedigreesDel();
CREATE OR REPLACE FUNCTION logPedigreesDel() RETURNS TRIGGER AS '
begin
RAISE EXCEPTION ''OLD.famindid = '', OLD.famindid;
return OLD;
end;
' LANGUAGE plpgsql;
Which when it fires results in:
cgb_lab_data=# \i testphdtrig.sql
psql:testphdtrig.sql:1: ERROR: OLD.famindid =
Regards,
rick
Tom Lane wrote:
Rick Casey <rick.casey@colorado.edu> writes:Here is the code that creates the delete trigger: create trigger PEDIGREES_hist_del_trig AFTER DELETE on PEDIGREES EXECUTE PROCEDURE logPedigreesDel();I think you forgot FOR EACH ROW. By default, the above creates a STATEMENT trigger, in which you don't have access to individual rows. regards, tom lane
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