According to this (very good) news, http://www.firebirdnews.org/firebird-3-protocol-benchmark/
Firebird 3 can have compression of data. Excellent!!! However neither in the above page neither in the "Firebird 3.0 Release Notes" http://web.firebirdsql.org/download/prerelease/rlsnotes/Firebird-3.0.0_Beta2-ReleaseNotes.pdf says how to compress data. Just that was implemented by Alex Peshkov. So, the evident question is: How to have data compressed? Of course, I am talking about Firebird 3. Greetings. Walter.