On Jun 22, 2007, at 14:11 , cluster wrote:
What is the fan-out (number of child nodes) on each B-tree node in postgresql? Is it dependent of the size of the keys being indexed? If so: How?In B-trees all non-leaf nodes have a bunch of pointers to its child nodes. What is the size of such a pointer?
I doubt this is in the documentation, but you can always read the source. I'd take a look around:
src/backend/access/nbtree/ starting, with the REAME file. Michael Glaesemann grzm seespotcode net
