Re: histogram

What is the meaning of

group by 1 order by 2

e.g. what to the numbers 1 and 2 stand for?

What would change if I do the following?

group by 1 order by 1

On Apr 30, 2011, at 5:48 PM, Thomas Markus wrote:

> Hi,
>
> try something like this:
>
> select
> trunc(random() * 10.)/10.
> , count(*)
> from
> generate_series(1,2000000)
> group by 1 order by 2

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