| From: | Jeff Davis <pgsql(at)j-davis(dot)com> |
|---|---|
| To: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Document WAL rules related to PD_ALL_VISIBLE in README |
| Date: | 2022-11-11 22:14:10 |
| Message-ID: | a50005c1c537f89bb359057fd70e66bb83bce969.camel@j-davis.com |
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| Lists: | pgsql-hackers |
Proposed wording attached.
The typical WAL rules are broken for setting PD_ALL_VISIBLE. I'm OK
with that -- rules are meant to be broken -- but it's confusing enough
that I think we should (internally) document it better. This doesn't
guarantee things won't change again in the future, but this behavior
has been stable for a while.
The thread here:
https://postgr.es/m/ee47ee24-2928-96e3-a2b1-97cbe07b2c7b%40garret.ru
also indicates that external projects and tools are relying on our
rules for the page LSNs.
Regards,
Jeff Davis
| Attachment | Content-Type | Size |
|---|---|---|
| v1-0001-Document-WAL-rules-related-to-PD_ALL_VISIBLE-in-R.patch | text/x-patch | 4.8 KB |
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