[postgis-users] Why the creation of an index GIST is much faster thanthe creation of an index RTREE

[Robert W. Burgholzer]

Sorry, I sent this previously, but since the date on my computer was set
backa year due to a power outage (and my failure to update it in the
bios), I will send this again:


Perhaps this will tell you what you would like to know:

http://postgis.refractions.net/docs/x545.html

It seems to me that not only do GIST and R-tree differ in approach (lossiness, the stats they gather)

 but that GIST is simply more fully implemented in postgres.

Hope this is of use,

Rob

--
Robert Burgholzer
al·go·rithm  n.
       A step-by-step problem-solving procedure, especially an established, recursive computational
       procedure for solving a problem in a finite number of steps. Invented by Al Gore.
rburghol at vt.edu
http://www.soulswimmer.net/


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