Re: Returning with the inserted id

Graf László wrote:
>
> A sequence to hold the id was defined with:
>     CREATE SEQUENCE "public"."test_azon_seq"
>         INCREMENT 1  MINVALUE 101
>         MAXVALUE 9223372036854775807  START 101
>         CACHE 1;
>
> The function wich allocates the id and defines the datum is:
>     CREATE FUNCTION test_verif() RETURNS trigger AS $test_verif$
>         BEGIN
>             select into NEW.id nextval('test_azon_seq');
>             NEW.datum := current_timestamp;
>             RETURN NEW;
>         END;
>     $test_verif$ LANGUAGE plpgsql;

I take it this is just an example, because you could do this with
DEFAULTs on both columns.

> When I issue an insert (see below) how can I retrieve the
> inserted value of id? I need something like Oracle's returns
> for insert.
>
> insert into "public"."test" (nev) values ('text');

SELECT currval('public.test_azon_seq');

And yes, it will cope with multiple concurrent connections inserting.
--  Richard Huxton  Archonet Ltd