| From: | Peter Eisentraut <peter_e(at)gmx(dot)net> |
|---|---|
| To: | pgsql-hackers(at)postgresql(dot)org |
| Cc: | Zdenek Kotala <Zdenek(dot)Kotala(at)sun(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Zeugswetter Andreas OSB SD <Andreas(dot)Zeugswetter(at)s-itsolutions(dot)at>, pgsql-patches(at)postgresql(dot)org, Andrew Dunstan <andrew(at)dunslane(dot)net> |
| Subject: | Re: [PATCHES] Fix for large file support (nonsegment mode support) |
| Date: | 2008-03-11 17:39:13 |
| Message-ID: | 200803111839.15657.peter_e@gmx.net |
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| Lists: | pgsql-hackers pgsql-patches |
Zdenek Kotala wrote:
> Yes, agree. It seems only ZFS is OK at this moment and if somebody sets
> 32TB he gets nonsegment mode anyway.
Surely if you set the segment size to INT64_MAX, you will get nonsegmented
behavior anyway, so two code paths might not be necessary at all.
> I looked into posix standard and
> there is useful function which can be used. See
>
> http://www.opengroup.org/onlinepubs/009695399/functions/pathconf.html
>
> Maybe we can put additional test into configure and collect appropriate
> data from buildfarm.
It might be good to just check first if it returns realistic values for the
example cases that have been mentioned.
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