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From Roman Shaposhnik <>
Subject Re: [VOTE] Apache HAWQ (incubating) Release
Date Tue, 09 Aug 2016 20:38:08 GMT
On Mon, Aug 8, 2016 at 8:51 PM, Justin Mclean <> wrote:
> Hi,
>>> if you're saying that we need to slap an ALv2 license header on something
>>> like shm.c -- I don't feel comfortable doing that
> Perhaps ask yourself why that is? Is it because the licensing/copyright/provenance is

No. All of the above is clear: it came from PG, we didn't modify it
and we'd like to keep it
that way.

> Does the files version control history tell you anything?

No. And that's an additional reason I'd prefer to vector anyone doing
software archeology
back to the real source control -- the one of PG project.

> I know in some cases here we’re dealing
> with files 10+ years old so that may be difficult. Perhaps list all files somewhere that
you are unsure
> of but likely to be Apache or other compatible license?

Well, I don't think there's ever a 100% assurance in IP matters,
but... here's what
we know AND here's what we would like to advertise to the consumers of HAWQ:
A certain set of file (how we advertise the filenames is TBD, but
likely in LICENSE)...
   1. ...came from PostgreSQL project version 8. With 8.1.0 being a
bulk of the import, but
    with a few files that came from older PG releases

   2. ...may have been initially released under whatever license, but
then were made
   available by the PostgreSQL project under the PostgreSQL license
(which is a BSD
   derivative and compatible with ALv2)

   3. the best of our software archeology analysis we can trust
PostgreSQL community
   on the statement in #2

That's our intent which I think is relatively problem free, so the
only question is
can we express this intent in the best possible way.


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