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Re: Escaping the ARC patent

From: "Jonah H(dot) Harris" <jharris(at)tvi(dot)edu>
To: "Jonah H(dot) Harris" <jharris(at)tvi(dot)edu>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Escaping the ARC patent
Date: 2005-02-04 02:16:13
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers
I found the reference I had seen.  The engine was the Multicache 
Simulation Environment written in C++.  I can't find the code to it 
anymore but I've contacted the author for a copy.

Jonah H. Harris wrote:

> I'll dive into my bookmarks and see if I can find it.
> Tom Lane wrote:
>> "Jonah H. Harris" <jharris(at)tvi(dot)edu> writes:
>>> I'm familiar with the 2Q algorithm.  I also remember seeing, I 
>>> believe, a public domain 2Q implementation floating around somewhere.
>> No doubt, but I think the more conservative way to get there is to
>> proceed by trimming down the working code we already have.  Adapting
>> someone else's code to fit into our backend infrastructure would involve
>> a fair amount of modifications (memory management and error handling at
>> the very least) with consequent risks of introducing bugs.
>> Still, it wouldn't be bad to have someone else's implementation at hand
>> as a comparison point.  Do you have a link handy?
>>             regards, tom lane
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