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Subject: Re: PostgreSQL License
To: pgsql-general@lists.postgresql.org
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From: Steve Atkins <steve@blighty.com>
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Date: Thu, 19 Sep 2019 18:32:50 +0100
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On 19/09/2019 13:48, Steve Litt wrote:
> My understanding is the PostgreSQL license is more like the MIT
> license, which actually allows one to modify the code and claim it as
> proprietary.
You could do that, yes. :)

https://wiki.postgresql.org/wiki/PostgreSQL_derived_databases

Cheers,
   Steve