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
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@ -1332,9 +1332,10 @@ pgbench <optional> <replaceable>options</replaceable> </optional> <replaceable>d
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<para>
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<para>
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The <literal>random</literal> function generates values using a uniform
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The <literal>random</literal> function generates values using a uniform
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distribution, that is all the values are drawn within the specified
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distribution, that is all the values are drawn within the specified
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range with equal probability. The <literal>random_exponential</literal> and
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range with equal probability. The <literal>random_exponential</literal>,
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<literal>random_gaussian</literal> functions require an additional double
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<literal>random_gaussian</literal> and <literal>random_zipfian</literal>
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parameter which determines the precise shape of the distribution.
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functions require an additional double parameter which determines the precise
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shape of the distribution.
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</para>
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</para>
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<itemizedlist>
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<itemizedlist>
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