Re: 8.4.0 data loss / HOT-related bug

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От Alvaro Herrera
Тема Re: 8.4.0 data loss / HOT-related bug
Дата
Msg-id 20090821161726.GF5487@alvh.no-ip.org
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Ответ на Re: 8.4.0 data loss / HOT-related bug  (Greg Stark <gsstark@mit.edu>)
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Greg Stark wrote:

> It looks like the row *was* updated by transaction 6179 and the new
> version was stored in line pointer 12. However  it's marked
> XMAX_INVALID which means at least somebody at some point thought 6179
> had aborted and marked that hint bit.

Hmm, but LP 12 shouldn't have len=0 then, no?  Unless it has been
clobbered by vacuum or HOT pruning, I guess ...

--
Alvaro Herrera                                http://www.CommandPrompt.com/
The PostgreSQL Company - Command Prompt, Inc.

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