Re: Is this a bug? Sequences and rules

am Tue, dem 10.04.2007, um 22:49:27 -0700 mailte Chris Travers folgendes:
> Hi;
>
> I noticed that rules were not behaving properly. I created a test case,
> and it looks like the sequence is getting double-incrimented. Is this
> the way this is supposed to work?
>
> I know triggers would be better for something like this but I find these
> results... surprising....
>
> Version is 8.1.4
>
> postgres=# create table test1 (id serial, test text);
> NOTICE: CREATE TABLE will create implicit sequence "test1_id_seq" for
> serial column "test1.id"
> CREATE TABLE
> postgres=# create table test2 (id int);
> CREATE TABLE
> postgres=# create rule insert as on insert to test1 do also insert into
> test2 (id) values (new.id);
> CREATE RULE

Use this instead:
create rule insert as on insert to test1 do also insert into test2 (id) values (currval('test1_id_seq'));

Andreas
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Andreas Kretschmer
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