Re: Trigger for Truncate event - Mailing list pgsql-novice

From Jignesh Shah
Subject Re: Trigger for Truncate event
Date
Msg-id c11950270908270107u5382b0a8x45c822bcff4381e2@mail.gmail.com
Whole thread Raw
In response to Re: Trigger for Truncate event  ("A. Kretschmer" <andreas.kretschmer@schollglas.com>)
Responses Re: Trigger for Truncate event  ("A. Kretschmer" <andreas.kretschmer@schollglas.com>)
List pgsql-novice
Thanks Kretschmer. Could you tell me what "return new" meant for?
 
Thanks,
Jigensh

On Thu, Aug 27, 2009 at 12:47 PM, A. Kretschmer <andreas.kretschmer@schollglas.com> wrote:
In response to Jignesh Shah :
> Hi,
>  
> Could any one please point me to TRUNCATE trigger PostgreSQL example?
>  
> Thanks,

test=# create table jignesh (i int);
CREATE TABLE
test=*# create function trg_jignesh() returns trigger as $$begin raise notice 'in the function'; return new; end;$$ language plpgsql;
CREATE FUNCTION
test=*# create trigger trg1 before truncate on jignesh for each statement execute procedure trg_jignesh();
CREATE TRIGGER
test=*# create trigger trg2 after truncate on jignesh for each statement execute procedure trg_jignesh();
CREATE TRIGGER
test=*# truncate jignesh ;
NOTICE:  in the function
NOTICE:  in the function
TRUNCATE TABLE


ROLLBACK, Andreas
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