All right. I found the function.
http://wiki.postgresql.org/wiki/Array_Unnest
Thanks a lot!
Emi
On 01/07/2013 03:16 PM, Emi Lu wrote:
> Thanks a lot! I just noticed that my postgresql is 8.3(unnest function
> is not there by default). Is there a way that I could download and load
> only this function from somewhere?
>
> Thanks again!
> Emi
>
>
> On 01/07/2013 02:58 PM, Jonathan S. Katz wrote:
>> On Jan 7, 2013, at 2:44 PM, Emi Lu wrote:
>>
>>> Hello,
>>>
>>> Is there a function to split a string to different rows?
>>>
>>> For example, t1(id, col1)
>>> values(1, 'a, b, c');
>>>
>>> select id, string_split_to_row(col1, ',');
>>>
>>> Return:
>>> =========
>>> 1, a
>>> 1, b
>>> 1, c
>>
>>
>> You can probably use some combination of "string_to_array" and "unnest"
>>
>> e.g.
>>
>> SELECT unnest(string_to_array('a,b,c', ','));
>>
>> unnest
>> --------
>> a
>> b
>> c
>> (3 rows)
>>
>> If you need a more complex string splitting mechanism, there is the
>> "regexp_split_to_array" function.
>>
>> Jonathan
>>
>
>
--
Emi Lu, ENCS, Concordia University, Montreal H3G 1M8
emilu@encs.concordia.ca +1 514 848-2424 x5884