> -----Original Message-----
> From: pgsql-hackers-owner@postgresql.org [mailto:pgsql-hackers-
> owner@postgresql.org] On Behalf Of Bruce Momjian
> Sent: Wednesday, February 04, 2009 3:28 PM
> To: Stanislav Lacko
> Cc: pgsql-hackers@postgresql.org
> Subject: Re: [HACKERS] Is a plan for lmza commpression in pg_dump
>
> Stanislav Lacko wrote:
> > Hi.
> >
> > Is it in todo or in a plan to implement lmza commpression in pg_dump
> > backups?
>
> Nope, never heard anything about it.
In case the PG group does get interested in insertion of compression
algorithms into PostgreSQL {it seems it could be useful in many
different areas}, the 7zip format seems to be excellent in a number of
ways.
Here is an interesting benchmark that shows 7z format winning a large
area of the "optimal compressors" performance graph:
http://users.elis.ugent.be/~wheirman/compression/
The LZMA SDK is granted to the public domain:
http://www.7-zip.org/sdk.html
Unfortunately LZOP (which wins the top half of the "optimal compressors"
graph where the compression and decompression speed is more important
than amount of compression) does not have a liberal license.
http://www.lzop.org/