On Fri, 2007-11-30 at 13:07 -0500, Tom Lane wrote: > FWIW, I tend to agree with the folks who think Bruce trimmed too much > this time. But the release notes are, and always have been, intended to > boil the CVS history down to something useful by eliminating irrelevant > detail.
OK, so given everything mentioned on this thread, there are three items that are user noticeable and so don't fall into the category of irrelevant detail: - Merge Join performance has been substantially improved when low number of duplicate join keys exist on the outer side of the join (Simon, Greg) - Large I/O reduction during recovery when full_page_writes = on (Heikki) - WAL file switch performance has been improved. Recovery startup now refers to the last checkpoint time, which may be anything up to the checkpoint_timeout interval before a database crash. (Simon, Tom) The last one seems important to me, but I can see that might be TMI for some people, though I feel we should document it somewhere. -- Simon Riggs 2ndQuadrant http://www.2ndQuadrant.com ---------------------------(end of broadcast)--------------------------- TIP 1: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to [EMAIL PROTECTED] so that your message can get through to the mailing list cleanly
