From: | Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com> |
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To: | Alexander Farber <alexander(dot)farber(at)gmail(dot)com> |
Cc: | pgsql-general <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: Custom shuffle function stopped working in 9.6 |
Date: | 2017-02-11 19:03:00 |
Message-ID: | adcf3b01-32c9-99b3-c81f-4c20d7b219db@aklaver.com |
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Lists: | pgsql-general |
On 02/11/2017 10:51 AM, Alexander Farber wrote:
> At the same time this advice from
> http://stackoverflow.com/questions/42179012/how-to-shuffle-array-in-postgresql-9-6-and-also-lower-versions
> works, don't know why though:
>
> words=> select array_agg(u order by random())
> words-> from unnest(array['a','b','c','d','e','f']) u;
> array_agg
> ---------------
> {d,a,f,c,b,e}
>
To future proof your code follow the advice shown in the doc snippet in
the first answer to your SO question. This is what I showed in my
answers to your questions.
--
Adrian Klaver
adrian(dot)klaver(at)aklaver(dot)com
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