From: Tom Lane <tgl@sss.pgh.pa.us>
To: Andrew Dunstan <andrew@dunslane.net>
Cc: Magnus Hagander <magnus@hagander.net>
Cc: Bruce Momjian <bruce@momjian.us>
Cc: PostgreSQL-documentation <pgsql-docs@postgresql.org>
Cc: PostgreSQL-development <pgsql-hackers@postgresql.org>
Subject: Re: [HACKERS] Moving tablespaces
Date: Sun, 04 Dec 2011 12:07:31 -0500
Message-ID: <26148.1323018451@sss.pgh.pa.us> (raw)
In-Reply-To: <4EDBA60D.2050904@dunslane.net>
References: <CABUevEx2xYV==WRxWdMr=mS3Q1orBUvJcXa8AZx_LVbL122g5Q@mail.gmail.com>
<201112041612.pB4GCHt06225@momjian.us>
<CABUevEzuRQLddyY2yypiZpjWzzEzz0p66TgzoXGuz+jLxKgdkg@mail.gmail.com>
<23636.1323016890@sss.pgh.pa.us>
<4EDBA60D.2050904@dunslane.net>
Andrew Dunstan <andrew@dunslane.net> writes:
> On 12/04/2011 11:41 AM, Tom Lane wrote:
>> Hm, how portable is symlink-reading? If we can actually do that
>> without big headaches, then +1.
> I wondered that, specifically about Windows junction points, but we seem
> to have support for it already in dirmod.c::pgreadlink(). Surely there's
> no other currently supported platform where it would even be a question?
readlink is required by Single Unix Spec v2 (1997), which is what we've
been treating as our baseline expectation for Unix-oid platforms for
awhile now. Given that we dealt with the Windows side already, I don't
see a problem with making this assumption. At worst we'd end up needing
a couple more emulations in src/port, since surely there's *some* way to
do it on any platform with symlinks.
regards, tom lane
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Subject: Re: [HACKERS] Moving tablespaces
In-Reply-To: <26148.1323018451@sss.pgh.pa.us>
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