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Re: Is a plan for lmza commpression in pg_dump

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Robert Haas <robertmhaas(at)gmail(dot)com>
Cc: daveg <daveg(at)sonic(dot)net>, Andrew Chernow <ac(at)esilo(dot)com>, Dann Corbit <DCorbit(at)connx(dot)com>, Stanislav Lacko <lacko(at)spacesystems(dot)sk>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Is a plan for lmza commpression in pg_dump
Date: 2009-02-07 21:53:15
Message-ID: 200902072153.n17LrFF19923@momjian.us (view raw or flat)
Thread:
Lists: pgsql-hackers
Robert Haas wrote:
> > That this comes up "much to often" suggests that there is more than near
> > zero interest.  Why can only one compression library can be considered?
> > We use multiple readline implementations, for better or worse.
> >
> > I think the context here is for pg_dump only and in that context a faster
> > compression library makes a lot of sense. I'd be happy to prepare a patch
> > if the license issue can be accomodated. Hence my question, what sort of
> > licence accomodation would we need to be able to use this library?
> 
> Based on previous discussions, I suspect that the answer here is
> "complete relicensing as BSD".  I think pursuing any sort of licensing
> exception is completely futile as there will still be restrictions
> that will be unacceptable to many in the community.
> 
> But if someone had an actual BSD-LICENSED compression library that was
> better than what we have now, I'm not sure why Bruce (or anyone)
> should be opposed to incorporating it.  It's just that all of the
> proposals that come up for this sort of thing aren't that.

You can be I would oppose it.  It is not efficient for us to support
every compression-of-the-month project that comes along.  If something
was BSD, well tested, and clearly superior, we might consider it, but I
have seen nothing like that for 10 years and I doubt I will see
something the next 5.  I am thinking we need to add this to the
"Features we do not want" section of our todo list.

-- 
  Bruce Momjian  <bruce(at)momjian(dot)us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + If your life is a hard drive, Christ can be your backup. +

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