On Wed, Apr 22, 2020 at 3:03 PM Andres Freund <and...@anarazel.de> wrote: > The 7zip format, perhaps. Does have format level support to address what > we were discussing earlier: "Support for solid compression, where > multiple files of like type are compressed within a single stream, in > order to exploit the combined redundancy inherent in similar files.".
I think that might not be a great choice. One potential problem is that according to https://www.7-zip.org/license.txt the license is partly LGPL, partly three-clause BSD with an advertising clause, and partly some strange mostly-free thing with reverse-engineering restrictions. That sounds pretty unappealing to me as a key dependency for core technology. It also seems like it's mostly a Windows thing. p7zip, the "port of the command line version of 7-Zip to Linux/Posix", last released a new version in 2016. I therefore think that there is room to question how well supported this is all going to be on the systems where most of us work all day. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company
