Re: Are we the first OSS database with parallel query?

On 08/29/2016 08:39 PM, David Fetter wrote:
> On Fri, Aug 26, 2016 at 08:41:15PM -0400, Josh Berkus wrote:
>> I suspect not, but I can't think of another example right now.
>
> There are a fair number that beat us to that punch (GPDB, HadoopDB,
> etc.)
>
> We're the first with a liberal license, though. :)
>

No, we're not. This is fairly tricky question, because there's
definitely a bunch of databases that are not used widely in production
environments, but are technically open source and implement some sort of
parallel query functionality.

For example there's MonetDB (which is using basically a Mozilla
license), which supports parallel queries since ~2012 or so.

There's also C-Store (Vertica is a commercial fork), and H-Store (VoltDB
is a commercial fork) - AFAIK both support query parallelism. Although
they are experimental / research project (and most companies use the
commercial forks in production), they use BSD license so technically
they are open source. Also, Stonebraker cooperated on both those
projects so neglecting them would be particularly annoying.


regards

--
Tomas Vondra                  http://www.2ndQuadrant.com
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