| From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Jelle Ouwerkerk <jelle(at)openface(dot)ca>, pgsql-sql(at)postgresql(dot)org |
| Subject: | Re: random |
| Date: | 2001-03-05 21:04:35 |
| Message-ID: | 200103052104.QAA01988@candle.pha.pa.us |
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| Lists: | pgsql-sql |
> Jelle Ouwerkerk <jelle(at)openface(dot)ca> writes:
> > Also, is there a way to randomize the order of a result set?
>
> There's always
> SELECT * FROM foo ORDER BY random();
>
How does that work?
test=> select random();
random
-------------------
0.896045367650709
(1 row)
However:
test=> select * from pg_class order by random();
does return some output. Is it random, and if so, how?
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
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