| From: | Antonin Houska <ah(at)cybertec(dot)at> |
|---|---|
| To: | Andres Freund <andres(at)anarazel(dot)de> |
| Cc: | Kirill Reshke <reshkekirill(at)gmail(dot)com>, Heikki Linnakangas <hlinnaka(at)iki(dot)fi>, Melanie Plageman <melanieplageman(at)gmail(dot)com>, Matthias van de Meent <boekewurm+postgres(at)gmail(dot)com>, pgsql-hackers(at)postgresql(dot)org, Thomas Munro <thomas(dot)munro(at)gmail(dot)com>, Noah Misch <noah(at)leadboat(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Michael Paquier <michael(dot)paquier(at)gmail(dot)com> |
| Subject: | Re: Buffer locking is special (hints, checksums, AIO writes) |
| Date: | 2026-02-12 10:36:08 |
| Message-ID: | 196082.1770892568@localhost |
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| Lists: | pgsql-hackers |
Andres Freund <andres(at)anarazel(dot)de> wrote:
> For something committable, I think we should probably split IsMVCCSnapshot
> into IsMVCCSnapshot(), just accepting SNAPSHOT_MVCC, and IsMVCCLikeSnapshot()
> accepting both SNAPSHOT_MVCC and SNAPSHOT_HISTORIC_MVCC. And then go through
> all the existing callers of IsMVCCSnapshot() - only about half should stay
> as-is, I think.
The attached patch tries to do that.
--
Antonin Houska
Web: https://www.cybertec-postgresql.com
| Attachment | Content-Type | Size |
|---|---|---|
| 0001-Refine-checking-of-snapshot-type.patch | text/x-diff | 3.3 KB |
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