Re: Potential G2-item cycles under serializable isolation - Mailing list pgsql-bugs

On 6/2/20 7:13 PM, Thomas Munro wrote:
> That's (unfortunately) a known problem under concurrency.  It'd be
> very nice to fix that, but it's an independent problem relating to DDL
> (not just tables, and not just IF EXISTS DDL, but anything modifying
> catalogues can race in this way and miss out on "nice" error messages
> or the IF EXISTS no-op).  Here's a good short summary:

Ah, yes, this does explain it, thank you! I was a bit concerned, because I know 
Postgres has a reputation for having transactional DDL. I guess this part of the 
API isn't. :)

--Kyle