Re: Migrate 200 Million of rows

From: Ryan Gaffuri <rgaffuri_at_cox.net>
Date: 29 Jul 2003 11:00:49 -0700
Message-ID: <1efdad5b.0307291000.5d987842@posting.google.com>

vslabs_at_onwe.co.za (Billy Verreynne) wrote in message news:<1a75df45.0307282103.1b5c53cf_at_posting.google.com>...
> rgaffuri_at_cox.net (Ryan Gaffuri) wrote
>
> > which compression program are you using? TAR? I was told its slow.
>
> TAR does not do compression - except for the Linux version that has
> Lempel-Ziv filtering built in (you use that with the -z/-Z switches
> for compress/gzip).
>
> The compression program (standard on all Unix flavours AFAIK) is
> called compress. And as I said, it uses an adaptive Lempel-Ziv coding
> scheme.

i dont know anything about compression algorithms. ive always wanted to get a high level explanation of how they actually 'compress' something. Im assuming its similiar to how voice is amplified when you speak in the phone. samples are taking and applied from there.

or am I wrong? Received on Tue Jul 29 2003 - 13:00:49 CDT