On Sun, 2007-06-05 at 21:30 -0400, Tom Lane wrote: > It'd be a good idea if you repeat the previous number-of-collisions > experiment on this code.
I repeated the same experiment, and got essentially the same number of collisions (829 collisions on ~2 million randomly generated numerics, with 273 duplicates). Since the modified hash still uses hash_any() and really only differs when there are leading/trailing zeros, this is consistent with what I'd expect. Patch applied to HEAD. -Neil ---------------------------(end of broadcast)--------------------------- TIP 4: Have you searched our list archives? http://archives.postgresql.org