| From: | Thomas Munro <thomas(dot)munro(at)gmail(dot)com> |
|---|---|
| To: | Alexander Lakhin <exclusion(at)gmail(dot)com> |
| Cc: | pgsql-bugs(at)lists(dot)postgresql(dot)org |
| Subject: | Re: BUG #17368: Assert failed in GetSafeSnapshot() for SERIALIZABLE READ ONLY DEFERRABLE transaction |
| Date: | 2023-03-08 11:57:20 |
| Message-ID: | CA+hUKGKT1RCYcy_p8RKGs0C5-8c2=J38xMOcYTxsPL=x6sr-cA@mail.gmail.com |
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| Lists: | pgsql-bugs |
On Tue, Mar 7, 2023 at 12:39 PM Thomas Munro <thomas(dot)munro(at)gmail(dot)com> wrote:
> Scratch that. I like the more ambitious idea better. I originally
> thought it would be less back-patchable, but that's nonsense -- this
> was a straight up thinko in ancient commit bdaabb9b and we should just
> fix it properly. That is, we should treat this case as a
> generalisation of the the PredXact->WritableSxactCount == 0 case, it's
> just that we had to do more work to figure that out. Here's a patch
> like that.
Here's a better version. I plan to push this tomorrow if there are no
objections.
| Attachment | Content-Type | Size |
|---|---|---|
| v4-0001-Fix-race-in-SERIALIZABLE-READ-ONLY.patch | text/x-patch | 3.9 KB |
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