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Re: Is this a bug? Sequences and rules

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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
-- 
Andreas Kretschmer
Kontakt:  Heynitz: 035242/47150,   D1: 0160/7141639 (mehr: -> Header)
GnuPG-ID:   0x3FFF606C, privat 0x7F4584DA   http://wwwkeys.de.pgp.net


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