Luke Lonergan wrote: > Bruce, > > We have a bitmap index AM in Bizgres (on PG 8.1.3) that is functional and > achieves very worthwhile (10x+) performance and space objectives. > > It is a large patch, and introduces the access method along with modifying > the appropriate executor nodes. The latter part was necessary because of > the need to bypass the in-memory bitmap index when an on-disk bitmap is > available. > > Because this patch is large, how do you suggest we go through review? Also, > there is some further work that Jie is doing to support efficient > multi-column indexes that will simplify the code, so we're not quite ready > for patch submission.
Well, post a URL of the patch, and keep working on it. When it is ready, let us know. -- Bruce Momjian http://candle.pha.pa.us EnterpriseDB http://www.enterprisedb.com + If your life is a hard drive, Christ can be your backup. + ---------------------------(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