Re: Test timings are increasing too fast for cfbot

David Rowley <dgrowleyml@gmail.com>

From: David Rowley <dgrowleyml@gmail.com>
To: Andres Freund <andres@anarazel.de>
Cc: pgsql-hackers@postgresql.org, Dilip Kumar <dilipbalaut@gmail.com>, Jelte Fennema-Nio <postgres@jeltef.nl>, Thomas Munro <thomas.munro@gmail.com>, Noah Misch <noah@leadboat.com>
Date: 2026-03-25T22:09:36Z
Lists: pgsql-hackers
On Wed, 25 Mar 2026 at 16:15, Andres Freund <andres@anarazel.de> wrote:
> Code wise, the most immediately noticeable things are

> 3) verify_compact_attribute(), pretty spread around

We do now have TupleDescFinalize(), where those could be checked just
once rather than on each call to TupleDescCompactAttr(). That's not
quite as watertight a guarantee as someone could change the
FormData_pg_attribute after TupleDescFinalize(). Just doing it in
TupleDescFinalize() would at least still catch the places where people
forget to call populate_compact_attribute() before
TupleDescFinalize().

I would have expected this to be a little less overhead now since
d8a859d22 removed the calls to TupleDescCompactAttr() in the main
deforming routine. Maybe I should just make that change in the other
deformers...? Do you have an idea of which callers of
verify_compact_attribute() are causing the most overhead?

David