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doc: Add random_zipfian to list of random functions with argument. 

Author: Ildar Musin
Reviewed-By: Fabian Coelho
Discussion: https://postgr.es/m/6376ed81-3ce8-14f4-4758-099872f4ce7d@postgrespro.ru
This commit is contained in:
Andres Freund 2018-03-01 01:40:00 -08:00
parent 337be37da3
commit 8c438fcc9f
1 changed files with 4 additions and 3 deletions
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7
doc/src/sgml/ref/pgbench.sgml
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@ -1332,9 +1332,10 @@ pgbench <optional> <replaceable>options</replaceable> </optional> <replaceable>d
<para>
The <literal>random</literal> function generates values using a uniform
distribution, that is all the values are drawn within the specified
range with equal probability. The <literal>random_exponential</literal> and
<literal>random_gaussian</literal> functions require an additional double
parameter which determines the precise shape of the distribution.
range with equal probability. The <literal>random_exponential</literal>,
<literal>random_gaussian</literal> and <literal>random_zipfian</literal>
functions require an additional double parameter which determines the precise
shape of the distribution.
</para>
<itemizedlist>