[Freeswitch-users] Some help with my post-paid billing project

[Diego Viola]

Wrong question.

Is there a way to compare numbers with prefixes without using the prefix
module?

Diego

On Wed, Oct 14, 2009 at 1:36 AM, Diego Viola <diego.viola at gmail.com> wrote:

> I'm using MySQL now but I will try PostgreSQL with the prefix module, is
> there a way to do that without the prefix module and with regular SQL?
>
> Any examples?
>
> Diego
>
>
> On Tue, Oct 13, 2009 at 10:45 PM, Even André Fiskvik <grevenx at me.com>wrote:
>
>> What database are you using?
>> You could do this with regular SQL, but it would by a costly operation,
>> for PostgreSQL we're using the prefix module:
>> http://pgfoundry.org/projects/prefix/
>>
>> You can then match the closest prefix by using something like
>> "WHERE myprefix_col @> caller_destination_number ORDER BY LENGTH
>> (myprefix_col::text) LIMIT 1;"
>>
>>
>> Best regards,
>> Even André
>>
>>
>> On 13. okt. 2009, at 23.53, Diego Viola wrote:
>>
>> > Hello,
>> >
>> > I'm trying to write a post-paid billing script, I have the CDR on my
>> > database and also a "rates" table, the CDR contains fields like
>> > caller_destination_number, variable_duration, etc. and the rates
>> > table contains: destination, prefix, rate (cost).
>> >
>> > The problem is that I can't just strip the destination number to
>> > take the prefix from it because I have to deal with destination
>> > numbers from different countries and they all have different prefix
>> > lengths... so I need to find another way to take the prefix from the
>> > destination number.
>> >
>> > Any ideas how to do this?
>> >
>> > Thanks,
>> >
>> > Diego
>> >
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