Robert Haas <robertmhaas(at)gmail(dot)com> writes:
> If we adopt the elsewhere-proposed approach of forbidding the use of
> rowtypes to create typed tables, the circularity-checking logic here
> can become simpler. I think it's not actually water-tight right now:
> rhaas=# create table a (x int);
> CREATE TABLE
> rhaas=# create table b of a;
> CREATE TABLE
> rhaas=# create table c () inherits (b);
> CREATE TABLE
> rhaas=# create table d of c;
> CREATE TABLE
> rhaas=# alter table a of d;
> ALTER TABLE
"alter table a of d"? What the heck does that mean, and why would it be
a good idea?
regards, tom lane