Re: BUG #5950: backend terminating after altering table

"alex"  writes:
> Such steps:
> 1. create table t (
> );
> 2. alter table t add childs t;
> 3. alter table t add id serial not null primary key;
> server closed the connection unexpectedly

Thanks for the report.  Fixed as per today's discussion (ie, disallow
creating a self-referencing rowtype).

			regards, tom lane