From: | Jeff Davis <pgsql(at)j-davis(dot)com> |
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To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
Cc: | Heikki Linnakangas <hlinnaka(at)iki(dot)fi>, pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: Is this a problem in GenericXLogFinish()? |
Date: | 2023-10-20 16:28:17 |
Message-ID: | 4b2dfe9c67713413a06be761f677bc34222afcb4.camel@j-davis.com |
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Lists: | pgsql-hackers |
On Thu, 2023-10-19 at 16:12 -0400, Robert Haas wrote:
> For what it's worth, though, I think it would be better to
> just make these cases exceptions to your Assert
OK, I'll probably commit something like v4 then.
I still have a question though: if a buffer is exclusive-locked,
unmodified and clean, and then the caller registers it and later does
PageSetLSN (just as if it were dirty), is that a definite bug?
There are a couple callsites where the control flow is complex enough
that it's hard to be sure the buffer is always marked dirty before
being registered (like in log_heap_visible(), as I mentioned upthread).
But those callsites are all doing PageSetLSN, unlike the hash index
case.
Regards,
Jeff Davis
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