Re: [PATCHES] Fix for large file support

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Zdenek Kotala <Zdenek(dot)Kotala(at)Sun(dot)COM>
Cc: Andrew Dunstan <andrew(at)dunslane(dot)net>, pgsql-hackers(at)postgreSQL(dot)org
Subject: Re: [PATCHES] Fix for large file support
Date: 2007-04-06 18:45:46
Message-ID: 16229.1175885146@sss.pgh.pa.us
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Zdenek Kotala <Zdenek(dot)Kotala(at)Sun(dot)COM> writes:
> Tom Lane wrote:
> LET_OS_MANAGE_FILESIZE is good way. I think one problem of this option I
> fixed. It is size of offset. I went thru the code and did not see any
> other problem there. However, how you mentioned it need more testing. I
> going to take server with large disk array and I will test it.

> I would like to add --enable-largefile switch to configure file to
> enable access to wide group of users. What you think about it?

Yeah, I was going to suggest the same thing --- but not with that switch
name. We already use enable/disable-largefile to control whether 64-bit
file access is built at all (this mostly affects pg_dump at the moment).

I think the clearest way might be to flip the sense of the variable.
I never found "LET_OS_MANAGE_FILESIZE" to be a good name anyway. I'd
suggest "USE_SEGMENTED_FILES", which defaults to "on", and you can
turn it off via --disable-segmented-files if configure confirms your
OS has largefile support (thus you could not specify both this and
--disable-largefile).

regards, tom lane

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