Excerpts from Todd Kover's message of mar ago 07 20:10:25 -0400 2012:
> Given this:
> ---<snip>---
> drop table IF EXISTS foo;
> drop table IF EXISTS foo_v26;
>
> create table foo (id serial not null, bar integer );
> alter table foo alter column id drop default;
>
> alter table foo rename to foo_v26;
>
> create table foo (id integer not null, bar integer );
>
> alter table foo alter id SET DEFAULT nextval('foo_id_seq');
>
> drop table foo_v26;
> ---<snip>---
>
> everthing works as expected until the final drop, which says:
>
> jazzhands=> drop table foo_v26;
> ERROR: cannot drop table foo_v26 because other objects depend on it
> DETAIL: default for table foo column id depends on sequence foo_id_seq
> HINT: Use DROP ... CASCADE to drop the dependent objects too.
I think you need an ALTER SEQUENCE .. OWNED BY to fix up dependencies
for the sequence.
--
Álvaro Herrera http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
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