Jim C. Nasby wrote: > On Wed, Oct 05, 2005 at 03:40:43PM -0700, Qingqing Zhou wrote: > > We do the prefix sharing when we build up index only, never on the fly. > > So are you saying that inserts of new data wouldn't make any use of > this? ISTM that greatly reduces the usefulness, though I'm not objecting > because compression during build is probably better than none at all. Is > there a technical reason compression can't be used during normal > operations?
Added to TODO: * Consider compressing indexes by storing key prefix values shared by several rows as a single index entry -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073 ---------------------------(end of broadcast)--------------------------- TIP 3: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq
