Re: sticky sequence

strk <strk@keybit.net> writes:
> I cannot get rid of a sequence:
>     gis=# drop sequence geopol.geology_gid_seq;
>     ERROR:  cache lookup of relation 8511697 failed
> Yes, geology_gid_seq have been created as a consequence of a
> geology.gid attribute of type serial.
> And.. yes, I've removed the relation with a delete on pg_class.

Shame on you ;-)

> Where is this sequence-to-relation association stored so that
> i can clean it up ?

Most likely the complaint is because there's still a link from table to
sequence in pg_depend.  Get rid of that pg_depend row and you should be
okay.
        regards, tom lane