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.

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

Thanks and Regards,
Alik Khilazhev
Postgres Professional:
The Russian Postgres Company

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