Added to TODO: * Order heap pointers on hash index pages by hash value and ctid
--------------------------------------------------------------------------- Zeugswetter Andreas SB SD wrote: > > > We could safely sort on the hash value, but I'm not sure how effective > > that would be, considering that we're talking about values that already > > hashed into the same bucket --- there's likely not to be very many > > distinct hash values there. > > I think we can safely put that on the todo list. > The existing hash algorithm is very good. So I would on the > contrary beleive that only a few keys share a hash value per pagesized bucket. > For the equal keys case it does not matter since we want all of the rows anyways. > For the equal hash value case it would probably be best to sort by ctid. > > TODO ?: order heap pointers inside hash index pages by hash value and ctid > > Andreas > > ---------------------------(end of broadcast)--------------------------- > TIP 8: explain analyze is your friend > -- Bruce Momjian | http://candle.pha.pa.us [EMAIL PROTECTED] | (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 7: don't forget to increase your free space map settings