From: | Thomas Lockhart <lockhart(at)fourpalms(dot)org> |
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To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | Charles Comiskey <comiskey(at)us(dot)ibm(dot)com>, pgsql-hackers(at)postgresql(dot)org, meskes(at)postgresql(dot)org |
Subject: | Re: [CORE] GPL Source and Copyright Questions |
Date: | 2006-06-23 01:17:32 |
Message-ID: | 449B412C.3040101@fourpalms.org |
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Lists: | pgsql-hackers |
>>1) Is any John Franks code really in this file?
Possibly, maybe probably. I don't remember the details (9 years is a
long time!) but almost certainly any code or algorithms were
specifically for the "inside" or "outside" routines.
>>2) Did John provide a separate license for PostgreSQL to license it under
>>the BSD license?
Not explicitly that I can recall.
> This code seems to have been inserted by Tom Lockhart on 1997-07-29
> (geo_ops.c rev 1.13). Tom, any info on the copyright status?
None, beyond the info you already resurrected. I vaguely recall that I
did take the LJ letter as an invitation to reuse algorithms. I would
guess that I had possible licensing conflicts in mind so would have
tried to avoid them, but it would probably be best for someone to
evaluate that from the current code bases. I may have preserved the
Franks info for attribution of concepts to a specific person and version.
My (also vague) recollection is that the original Postgres algorithm was
just broken. I would suggest looking at the code, contacting J. Franks
if there are questions or a need for license clarification or
authorization, and finding an alternative algorithm if necessary.
hth
- Tom
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