Re: BUG #11638: Transaction safety fails when constraints are dropped and analyze is done

cg@osss.net writes:
> When, within a transaction:
> * I drop a foreign key (or any) constraint.
> * Load some data to the table which won't fit the constraint.
> * Analyze the table.
> * Attempt to re-add the constraint which fails and should roll back the
> whole transaction.
> The constraint is still missing after rollback.
> If I take out the analyze step, it works as expected.

Fix committed, many thanks for chasing this down to the point of having a
reproducible case!  I imagine this was a real bear to pinpoint.

            regards, tom lane