Compression Library and Usages
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From: "Joshua D. Drake" on 11 Jan 2010 19:54 On Mon, 2010-01-11 at 19:54 -0500, Tom Lane wrote: > Merlin Moncure <mmoncure(a)gmail.com> writes: > > plus, it looks like that most of the patents have either expired, or > > are about to expire. lzo is used all over the place, including the > > linux kernel...i think the burden of proof rests with anyone claiming > > there are patent problems, not the other way around. lzo is also gpl > > so we can't use it :D. regarding fastlz and patents, who knows? I'm > > curious...does anyone know of a case where a high profile open source > > project was found to be violating a patent? > > You have got that 100% backwards. We are not going to bet the survival > of the Postgres project on whether we can get away with violating > somebody's patent. +1 Joshua D. Drake > > regards, tom lane > -- PostgreSQL.org Major Contributor Command Prompt, Inc: http://www.commandprompt.com/ - 503.667.4564 Consulting, Training, Support, Custom Development, Engineering Respect is earned, not gained through arbitrary and repetitive use or Mr. or Sir. -- Sent via pgsql-hackers mailing list (pgsql-hackers(a)postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
From: Merlin Moncure on 11 Jan 2010 22:39 On Mon, Jan 11, 2010 at 7:54 PM, Tom Lane <tgl(a)sss.pgh.pa.us> wrote: > Merlin Moncure <mmoncure(a)gmail.com> writes: >> plus, it looks like that most of the patents have either expired, or >> are about to expire. lzo is used all over the place, including the >> linux kernel...i think the burden of proof rests with anyone claiming >> there are patent problems, not the other way around. lzo is also gpl >> so we can't use it :D. regarding fastlz and patents, who knows? I'm >> curious...does anyone know of a case where a high profile open source >> project was found to be violating a patent? > > You have got that 100% backwards. We are not going to bet the survival > of the Postgres project on whether we can get away with violating > somebody's patent. I was only talking about the specific case of lzo, which is used absolutely everywhere (not that this means anything but...). merlin -- Sent via pgsql-hackers mailing list (pgsql-hackers(a)postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
From: Peter Eisentraut on 12 Jan 2010 04:32 On mån, 2010-01-11 at 22:39 -0500, Merlin Moncure wrote: > On Mon, Jan 11, 2010 at 7:54 PM, Tom Lane <tgl(a)sss.pgh.pa.us> wrote: > > Merlin Moncure <mmoncure(a)gmail.com> writes: > >> plus, it looks like that most of the patents have either expired, or > >> are about to expire. lzo is used all over the place, including the > >> linux kernel...i think the burden of proof rests with anyone claiming > >> there are patent problems, not the other way around. lzo is also gpl > >> so we can't use it :D. regarding fastlz and patents, who knows? I'm > >> curious...does anyone know of a case where a high profile open source > >> project was found to be violating a patent? > > > > You have got that 100% backwards. We are not going to bet the survival > > of the Postgres project on whether we can get away with violating > > somebody's patent. > > I was only talking about the specific case of lzo, which is used > absolutely everywhere (not that this means anything but...). I think this compression business warrants a FAQ entry by now: N a) Why don't you use compression library X? Many compression libraries have an unclear patent situation, and the potential benefits using them do not appear to outweigh that risk. N b) But LZO cannot possibly have any relevant patents on it because a lot of open-source software uses it. The LZO library is licensed under the GPL, so we can't use it. -- Sent via pgsql-hackers mailing list (pgsql-hackers(a)postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
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