From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
---|---|
To: | Sam Mason <sam(at)samason(dot)me(dot)uk> |
Cc: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: docs for random function |
Date: | 2009-08-16 19:57:23 |
Message-ID: | 5064.1250452643@sss.pgh.pa.us |
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Lists: | pgsql-hackers |
Sam Mason <sam(at)samason(dot)me(dot)uk> writes:
> The docs for the function random() currently say:
> random value between 0.0 and 1.0, inclusive
> this isn't a particularly useful invariant, what the code actually does
> (and is commented as doing) is much more useful. Any chance of changing
> it to something like:
Yeah, it looks like Bruce changed this back in 8.2 and failed to fix
the documentation to match. I used this wording instead:
***************
*** 821,827 ****
<row>
<entry><literal><function>random</function>()</literal></entry>
<entry><type>dp</type></entry>
! <entry>random value between 0.0 and 1.0, inclusive</entry>
<entry><literal>random()</literal></entry>
<entry></entry>
</row>
--- 821,827 ----
<row>
<entry><literal><function>random</function>()</literal></entry>
<entry><type>dp</type></entry>
! <entry>random value in the range 0.0 <= x < 1.0</entry>
<entry><literal>random()</literal></entry>
<entry></entry>
</row>
regards, tom lane
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