| From: | Andres Freund <andres(at)anarazel(dot)de> |
|---|---|
| To: | Michael Paquier <michael(dot)paquier(at)gmail(dot)com> |
| Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Thom Brown <thom(at)linux(dot)com>, Kyotaro HORIGUCHI <horiguchi(dot)kyotaro(at)lab(dot)ntt(dot)co(dot)jp>, Fabrízio Mello <fabriziomello(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Error with index on unlogged table |
| Date: | 2015-12-09 12:07:41 |
| Message-ID: | 20151209120741.GJ28762@awork2.anarazel.de |
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| Lists: | pgsql-hackers |
On 2015-12-09 21:03:47 +0900, Michael Paquier wrote:
> Oh, OK. I didn't read though your lines correctly. So you basically
> mean that we would look at the init files that are on disk, and check
> if they are empty. If they are, we simply use XLogReadBufferExtended
> to fetch the INIT_FORKNUM content and fill in another buffer for the
> MAIN_FORKNUM. More or less right?
We'd not just do so if they're empty, we'd just generally copy the file
via shared buffers, instead of copy_file(). But we'd get the file size
from the filesystem (which is fine, we make sure it is correct during
replay).
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