Details on community survey

Regarding the community survey on the website: http://www.postgresql.org/community/

It would be great to have a little more detail about each of the TODO’s – what it means, what’s in scope, what’s out of scope, etc.

For example, PITR looks like a popular option, but there is already some PITR functionality in Postgres, so what would this TODO add?

Also, there was some talk previously about building a new log-based replication scheme, and I don’t see that on the list.  Why not?

Thanks!

--S