On 2019-Mar-21, Alvaro Herrera wrote:
> I figured this out. It's actually a bug in pg11, whereby we're setting
> a dependency wrongly. If you try to do pg_describe_object() the
> pg_depend entries for tables set up the way the regression test does it,
> it'll fail with a "cache lookup failed for constraint XYZ". In other
> words, pg_depend contains bogus data :-(
Oh, actually, it's not a problem in PG11 ... or at least, it's not THIS
problem in pg11. The bug was introduced by 1d92a0c9f7dd which ended the
DEPENDENCY_INTERNAL_AUTO saga, so the bug is only in master, and that
explains why I hadn't seen the problem before with my posted patch
series.
I think the attached is a better solution, which I'll go push shortly.
--
Álvaro Herrera https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
