On Tue, 1 Mar 2005, Tom Lane wrote: > Tatsuo Ishii <t-ishii@xxxxxxxxx> writes: > > So it seems Ioannis' number was not taken immediately after a CREATE > > INDEX operation? > > I would guess not, but it's up to him to say. If it is a number derived > after some period of normal operation, then his result agrees with the > theory that says 70% is the steady-state figure ... yes, my number was taken after a large amount of inserts. Your comments about the block usage in case of b-tree indexes are absolutely interesting. Where can i find a documentation with technical analysis for all (if possible) of components of postgres? All documentations that i have found are very general and refer to simple users. > > regards, tom lane > ---------------------------(end of broadcast)--------------------------- TIP 6: Have you searched our list archives? http://archives.postgresql.org