On 1/15/08, Joe Wilson <[EMAIL PROTECTED]> wrote:
> > On 1/14/08, mark pirogovsky <[EMAIL PROTECTED]> wrote:
> > > Some relational (PostgreSQL for example) databases allow you to store
> > > arbitrary array as a field in on row.
>
> I was not aware of Postgres arrays or that it is part of the
> SQL:1999 standard:
>
>  http://www.postgresql.org/docs/8.0/interactive/arrays.html
>
> Or, for that matter, that postgres supports Set Returning Functions
> that can be queried in the FROM clause:
>
>  http://www.postgresql.org/docs/8.0/static/functions-srf.html
>
>  select * from generate_series(2,4);
>   generate_series
>  -----------------
>                 2
>                 3
>                 4
>
> I suppose that generate_series() could be implemented as an iterator.
>
> Useful stuff. Thanks for the tip.
>
>


also very useful (from my pov) as it can avoid several lines of code
in the application...

SELECT array(i) FROM table

or

SELECT cols FROM table WHERE array[i] OPERATOR array[j]

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