Thread: Hash function

On Jan 11, 2015 6:53 AM, "Ravi Kiran" <ravi.kolanpaka@gmail.com> wrote:
>
> Hi, 
>
> I want to know what kind of hash function postgres is using currently, can someone please explain the algorithm postgres is using for the hash function in the hash join algorithm.
>
> Thanks,
>
> K.Ravikiran

Hello,

I would start by looking here.

http://git.postgresql.org/gitweb/?p=postgresql.git;a=tree;f=src/backend/access/hash;hb=HEAD

hashfunction.c might be of most interest to you. :)

Otherwise, I would ask internals questions like this on -hackers instead of -novice

Hope that helps :)

Lacey