Обсуждение: number of elements in a multidimensional array

From this array how could I get back the fact that this array consists
of a two dimensional array with X elements?

Select array_dims('{{1,4,10,11},{1,5,4,5}}'::text [])

I would like to get back the number 4 here?

Thanks for the help.
Balázs

SunWuKung wrote:
> >From this array how could I get back the fact that this array consists
> of a two dimensional array with X elements?
>
> Select array_dims('{{1,4,10,11},{1,5,4,5}}'::text [])
>
> I would like to get back the number 4 here?
>
> Thanks for the help.
> Balázs

This is what I came up with finally, not very elegant but seems to do
the job:
Select substring(array_dims('{{1,4,10,11},{1,5,4,5}}'::text []) from
'([0-9]*)]$')

On Thu, Aug 31, 2006 at 08:17:35AM -0700, SunWuKung wrote:
> From this array how could I get back the fact that this array
> consists of a two dimensional array with X elements?
>
> Select array_dims('{{1,4,10,11},{1,5,4,5}}'::text [])
>
> I would like to get back the number 4 here?

SELECT array_upper('{{1,4,10,11},{1,5,4,5}}'::TEXT[], 2);

Cheers,
D
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David Fetter <david@fetter.org> http://fetter.org/
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                              Skype: davidfetter

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