Re: BUG #15631: Generated as identity field in a temporary table with on commit drop corrupts system catalogs

Michael Paquier <michael@paquier.xyz> writes:
> On Fri, Feb 15, 2019 at 05:03:29PM +0100, Peter Eisentraut wrote:
>> Yeah, I'm OK on that, but that's not really the problem here.  This is
>> not a case where a later step in a complex DDL command needs to see what
>> an earlier step did.  This is about that something later in the
>> transaction needs to see what happened earlier in the transaction.  This
>> does not seem to be the job of each individual DDL command; they don't
>> know what someone later might want to look at.  Otherwise many DDL
>> command implementations are lacking this CCI.  I think the CCI should be
>> more like at the end of ProcessUtility().

> Not all utility commands need a CCI, for example take VACUUM.

BEGIN and COMMIT are more convincing counterexamples ...

            regards, tom lane