Re: is this a bug ? - Mailing list pgsql-general

From Sim Zacks
Subject Re: is this a bug ?
Date
Msg-id d9bg4s$2nbi$1@news.hub.org
Whole thread Raw
In response to is this a bug ?  (Cedric BRINER <work@infomaniak.ch>)
List pgsql-general
This is a normal error.
If you want to remove the sequence first you have to remove the default
value from the sequenced field.
remember serial means int4 with a default of get next serial number.

ALTER TABLE test
   ALTER COLUMN test_id_key DROP DEFAULT;

After that you could probably drop the sequence without a problem

"Cedric BRINER" <work@infomaniak.ch> wrote in message
news:20050616175239.GA23283@obs.unige.ch...
> hi,
>
> I'm facing this problem
>
> DROP TABLE test;
> DROP TABLE new_test;
> CREATE TABLE test (id serial NOT NULL UNIQUE, nom varchar(32));
> INSERT INTO test ("nom") values ('cedric');
> INSERT INTO test ("nom") values ('felix');
> INSERT INTO test ("nom") values ('julien');
>
> CREATE TABLE new_test (id serial NOT NULL UNIQUE, nom varchar(32));
> INSERT INTO new_test SELECT * FROM test;
>
> ALTER TABLE new_test ALTER COLUMN id SET DEFAULT
nextval('public.test_id_seq');
> DROP TABLE test;
>
> ALTER TABLE new_test RENAME TO test;
> ALTER TABLE new_test_id_key RENAME TO test_id_key;
>
> DROP SEQUENCE new_test_id_seq ;
> -- this give an error... is this normal
>
> is this the normal behaviour ?
>
> Ced.
> --
>
> Cedric BRINER
>
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