Re: random
От | Bruce Momjian |
---|---|
Тема | Re: random |
Дата | |
Msg-id | 200103052104.QAA01988@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Re: random (Tom Lane <tgl@sss.pgh.pa.us>) |
Ответы |
Re: random
Re: random |
Список | pgsql-sql |
> Jelle Ouwerkerk <jelle@openface.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@candle.pha.pa.us | (610) 853-3000+ If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill, Pennsylvania19026
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