Howto determin the number of elemnts of an array

[Együd Csaba]

Hi,
how can I determin the number of elements of an array? I saw function
array_dims() which returns a string value representing the dimensions of the
array. Is there a function which returns only the number of elements as an
integer.

-- Csaba

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[Sven Willenberger]

Együd Csaba wrote:

> Hi,
> how can I determin the number of elements of an array? I saw function
> array_dims() which returns a string value representing the dimensions of the
> array. Is there a function which returns only the number of elements as an
> integer.
>
> -- Csaba
>

array_upper(arrayname,dimension) will return the number of elements in
the specified dimension of array arrayname.

Sven


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[Együd Csaba]

Hi Seven,
it would be better for me if it returned the number of elements as an
integer even if the array is empty (in this case it returns with NULL). No
metter this is easily can be worked around, but it would have been more
confortable.

Thank you very much.
-- Csaba Együd

-----Original Message-----
From: Sven Willenberger [mailto:sven@dmv.com]
Sent: Monday, January 31, 2005 4:27 PM
To: [email]pgsql-general@postgresql.org[/email]
Cc: Együd Csaba
Subject: Re: [GENERAL] Howto determin the number of elemnts of an array



Együd Csaba wrote:

> Hi,
> how can I determin the number of elements of an array? I saw function
> array_dims() which returns a string value representing the dimensions
> of the array. Is there a function which returns only the number of
> elements as an integer.
>
> -- Csaba
>

array_upper(arrayname,dimension) will return the number of elements in the
specified dimension of array arrayname.

Sven

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[Együd Csaba]

Hi,
this function is part of GiST which is not installed on my server. Should I
install the whole GiST or there is a single package to implement only this
feature?

thank you,
-- Csaba

-----Original Message-----
From: PFC [mailto:lists@boutiquenumerique.com]
Sent: Monday, January 31, 2005 5:16 PM
To: Együd Csaba; 'Sven Willenberger'; [email]pgsql-general@postgresql.org[/email]
Subject: Re: [GENERAL] Howto determin the number of elemnts of an array


icount( array )

> Hi Seven,
> it would be better for me if it returned the number of elements as an
> integer even if the array is empty (in this case it returns with NULL).
> No
> metter this is easily can be worked around, but it would have been
> more confortable.
>
> Thank you very much.
> -- Csaba Együd
>
> -----Original Message-----
> From: Sven Willenberger [mailto:sven@dmv.com]
> Sent: Monday, January 31, 2005 4:27 PM
> To: [email]pgsql-general@postgresql.org[/email]
> Cc: Együd Csaba
> Subject: Re: [GENERAL] Howto determin the number of elemnts of an
> array
>
>
>
> Együd Csaba wrote:

>> Hi,
>> how can I determin the number of elements of an array? I saw function
>> array_dims() which returns a string value representing the dimensions
>> of the array. Is there a function which returns only the number of
>> elements as an integer.
>>
>> -- Csaba
>>

>
> array_upper(arrayname,dimension) will return the number of elements in
> the specified dimension of array arrayname.
>
> Sven
>

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[Együd Csaba]

I really can't find such file in contrib dir. Nor files containing 'icount'
pattern. Sorry.
I use Pg8.0 final on windows XP.

On the [url]http://www.sai.msu.su/~megera/postgres/gist/[/url] url I can find only a
patch. Where can I download the whole package from?

Thank you.

-- Csaba

-----Original Message-----
From: PFC [mailto:lists@boutiquenumerique.com]
Sent: Monday, January 31, 2005 8:48 PM
To: Együd Csaba; 'Sven Willenberger'; [email]pgsql-general@postgresql.org[/email]
Subject: Re: [GENERAL] Howto determin the number of elemnts of an array


contrib/intarray

On Mon, 31 Jan 2005 20:00:06 +0100, Együd Csaba <csegyud@vnet.hu> wrote:

> Hi,
> this function is part of GiST which is not installed on my server.
> Should I
> install the whole GiST or there is a single package to implement only
> this feature?
>
> thank you,
> -- Csaba
>
> -----Original Message-----
> From: PFC [mailto:lists@boutiquenumerique.com]
> Sent: Monday, January 31, 2005 5:16 PM
> To: Együd Csaba; 'Sven Willenberger'; [email]pgsql-general@postgresql.org[/email]
> Subject: Re: [GENERAL] Howto determin the number of elemnts of an
> array
>
>
> icount( array )
>
>

>> Hi Seven,
>> it would be better for me if it returned the number of elements as an
>> integer even if the array is empty (in this case it returns with NULL).
>> No
>> metter this is easily can be worked around, but it would have been
>> more confortable.
>>
>> Thank you very much.
>> -- Csaba Együd
>>
>> -----Original Message-----
>> From: Sven Willenberger [mailto:sven@dmv.com]
>> Sent: Monday, January 31, 2005 4:27 PM
>> To: [email]pgsql-general@postgresql.org[/email]
>> Cc: Együd Csaba
>> Subject: Re: [GENERAL] Howto determin the number of elemnts of an
>> array
>>
>>
>>
>> Együd Csaba wrote:

>>> Hi,
>>> how can I determin the number of elements of an array? I saw
>>> function
>>> array_dims() which returns a string value representing the
>>> dimensions of the array. Is there a function which returns only the
>>> number of elements as an integer.
>>>
>>> -- Csaba
>>>

>>
>> array_upper(arrayname,dimension) will return the number of elements
>> in the specified dimension of array arrayname.
>>
>> Sven
>>

>
>

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