On Thu, 4 Jun 2026 at 17:57, Chao Li <[email protected]> wrote: > While testing "Optimize tuple deformation”, I found a bug:
> I think the problem is in finding the first non-guaranteed attribute where > virtual generated attributes are not considered: Thanks for the report and fix. I pushed a slightly adjusted version. Form_pg_attribute.attgenerated is '\0' for non-generated columns, so there's no point in checking cattr->attgenerated as well as that. I also added an Assert() to help catch any other reason that the guaranteed column gets set incorrectly again in TupleDescFinalize(). David
