Re: Proposal for Updating CRC32C with AVX-512 Algorithm.

On Wed, Jun 12, 2024 at 02:08:02PM -0400, Tom Lane wrote:
> "Amonson, Paul D" <paul(dot)d(dot)amonson(at)intel(dot)com> writes:
> > I had our OSS internal team, who are experts in OSS licensing, review possible conflicts between the PostgreSQL license and the BSD-Clause 3-like license for the CRC32C AVX-512 code, and they found no issues. Therefore, including the new license into the PostgreSQL codebase should be acceptable.
>
> Maybe you should get some actual lawyers to answer this type of
> question. The Chromium license this code cites is 3-clause-BSD
> style, which is NOT compatible: the "advertising" clause is
> significant.
>
> In any case, writing copyright notices that are pointers to
> external web pages is not how it's done around here. We generally
> operate on the assumption that the Postgres source code will
> outlive any specific web site. Dead links to incidental material
> might be okay, but legally relevant stuff not so much.

Agreed. The licenses are compatible in the sense that they can be
combined to create a unified work, but they cannot be combined without
modifying the license of the combined work. You would need to combine
the Postgres and Chrome license for this, and I highly doubt we are
going to be modifying the Postgres for this.

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Bruce Momjian <bruce(at)momjian(dot)us> https://momjian.us
EDB https://enterprisedb.com

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