Rename some rel truncation related constants at the top of vacuumlazy.c

Peter Geoghegan <pg@bowt.ie> writes:

I propose to rename some of the rel truncation related constants at
the top of vacuumlazy.c, per the attached patch. The patch
consolidates related constants into a single block/grouping, and
imposes a uniform naming scheme.

Um ... you seem to have removed some useful comments?

Personally I wouldn't do this, as I don't think the renaming
brings much benefit, and it will create a hazard for back-patching
any fixes that might be needed in that code. I'm not hugely upset
about it, but that's the way I'd vote if asked.

regards, tom lane

On Mon, Jul 18, 2022 at 8:55 PM Tom Lane <tgl@sss.pgh.pa.us> wrote:

Um ... you seem to have removed some useful comments?

I don't think that the stuff about making them into a GUC is useful myself.

Personally I wouldn't do this, as I don't think the renaming
brings much benefit, and it will create a hazard for back-patching
any fixes that might be needed in that code. I'm not hugely upset
about it, but that's the way I'd vote if asked.

In that case I withdraw the patch.

FWIW I wrote the patch during the course of work on new feature
development. A patch that added a couple of similar constants a bit
further down. Seemed neater this way, but it's certainly not worth
arguing over.

--
Peter Geoghegan