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? Thanks ---------------------------(end of broadcast)--------------------------- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match