On Fri, 2007-11-30 at 06:31 +0000, Simon Riggs wrote: > I also notice that two performance features have disappeared from the > release notes. (Presumably they have been removed from source). Both of > them have changes that can be seen by users, so can't see why we would > want them removed.
Wow, just realised 3 of Heikki's performance patches aren't mentioned either: - CheckpointStartLock removal - I/O reduction during recovery - Tuning of Visibility code I'm not sure what the rationale is for not mentioning these things. They're at least as important, if not more so, than mentioning minor source code changes. If people understand there aren't 13 performance improvements there are at *least* 19+ that is a positive message to help people decide to upgrade. -- Simon Riggs 2ndQuadrant http://www.2ndQuadrant.com ---------------------------(end of broadcast)--------------------------- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match
