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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Bob Jolliffe <bobjolliffe@gmail.com>
cc: pgsql-performance@lists.postgresql.org
Subject: Re: How can sort performance be so different
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Bob Jolliffe <bobjolliffe@gmail.com> writes:
> I wonder what can cause such a massive discrepancy in the sort time.

Are you using the same locale (LC_COLLATE) setting on both machines?
Some locales sort way slower than C locale does.  That's not enough
to explain a 1000X discrepancy --- I concur with the other opinions
that there's something wrong with your VPS --- but it might account
for something like 10X of it.

			regards, tom lane