Re: [HACKERS] [WIP] Zipfian distribution in pgbench

[Alik Khilazhev]

Hello Fabien, On 14 Jul 2017, at 17:51, Fabien COELHO <coe...@cri.ensmp.fr> wrote: Ok, so you did not get the large bias for i=3. Strange. I got large bias for i=3 and theta > 1 even with a million outcomes, but for theta < 1 (I have tested on theta = 0.1 and 0.3) it showed quite good results. I am attaching patch v3. Among other things I fixed small typo in description of random_exponential function in pgbench.sgml file.

pgbench-zipf-03v.patch
Description: Binary data

— Thanks and Regards, Alik Khilazhev Postgres Professional: http://www.postgrespro.com The Russian Postgres Company