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Re: eliminate xl_heap_visible to reduce WAL (and eventually set VM on-access) - Mailing list pgsql-hackers

From Melanie Plageman
Subject Re: eliminate xl_heap_visible to reduce WAL (and eventually set VM on-access)
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Msg-id CAAKRu_ZhHtEaucO--SdYrCjq0zgqk_LPztUD+-QS74A2htXgKw@mail.gmail.com
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In response to Re: eliminate xl_heap_visible to reduce WAL (and eventually set VM on-access)  (Melanie Plageman <melanieplageman@gmail.com>)
Responses Re: eliminate xl_heap_visible to reduce WAL (and eventually set VM on-access)
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On Thu, Mar 19, 2026 at 10:38 PM Melanie Plageman
<melanieplageman@gmail.com> wrote:
>
> Thanks for the detailed review! Unless otherwise specified, attached
> v41 includes all of your straightforward review points.

I've made several minor updates and two notable updates in attached v42:

- no separate log_newpage_buffer() for empty page vacuum.
log_heap_prune_and_freeze() now handles pages without a valid LSN on
its own
- the heap_page_is_all_visible() assertion should be stable even once
it uses GlobalVisState because I've updated the GloablVisState
functions to avoid updating the GlobalVisState boundaries in this case

- Melanie
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