Just to clarify, hot standby wasn't backed out, because the changes were never "in". There was a working patch set against the 8.4 tree (which you could still g

Just to clarify, hot standby wasn't backed out, because the changes were never "in". There was a working patch set against the 8.4 tree (which you could still get today) for hot standby, and the testing/review of that code ran into enough corner cases that the reviewers thought it was best to push it. While many of the same people are involved in the synchronous replication piece, the issues in that code didn't really play a part (it had pretty much been decided at least month ago that synchronous replication wouldn't make it)