Re: Differential Backups

quote from gnu diff man page:

-h This option currently has no effect; it is present for Unix
compatibility.

-----Original Message-----
From: pgsql-general-owner(at)postgresql(dot)org
[mailto:pgsql-general-owner(at)postgresql(dot)org]On Behalf Of Paul Tomblin
Sent: Monday, October 29, 2001 6:31 PM
To: pgsql-general(at)postgresql(dot)org
Subject: Re: [GENERAL] Differential Backups

Quoting Alvaro Herrera (alvherre(at)atentus(dot)com):
> > Interesting idea. The one thing I might worry about is that 'diff'
> > might (I'm not familiar with its algorithm) eat a great deal of memory
> > if the dumps you're comparing are very large and significantly
> > different.
>
> GNU diff reads in memory both files. You sure need lots to compare
> medium sized databases, and I don't think this method will work on big
> ones.

Doesn't GNU diff have the "-h" option?

--
Paul Tomblin <ptomblin(at)xcski(dot)com>, not speaking for anybody
Never underestimate the bandwidth of a station wagon full of
tapes hurtling down the highway.
-- Andrew Tanenbaum

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