Re: Fixes inconsistent behavior in vacuum when it processes multiple relations

On Thu, Mar 26, 2026 at 11:07:52AM -0500, Nathan Bossart wrote:
> Wait... Can't we just pass params by value only to vacuum_rel()? Doesn't
> this accomplish what we need?

It would accomplish Andres's goal of avoiding a deeper inclusion of
vacuum.h in src/include/.

Still, I slightly prefer your v2, where the interface of vacuum_rel()
is leaner with all the other ones. It comes at the cost of copying
the input parameters into a temporary "copy" of VacuumParams, but I
see the fact of marking the input "params" with a const as more
valuable in the long-run, with less temptation to manipulate it
directly especially it is not not marked with a const. One small
worry with v3 is that people like copy-pasting code around, and I
suspect that v2 could discourage better the patterns that 2252fcd4276c
has tried to improve and that 661643dedad9 had to fix.
--
Michael