Re: Postgres View DDL

Hello Sam.

I think you want this:

SELECT COALESCE(regexp_replace('abc12345'::TEXT,  '[^0-9]+', '', 'g')::NUMERIC, 0);

The coalesce need the same type from origin field, or you cast the result from regex to interger/numeric etc, or you use cast ‘0’ instead of 0;

Regards,
William Alves.

> On 16 Oct 2024, at 18:42, Sam Stearns <sam.stearns@dat.com> wrote:
> 
> Tried changing to this:
> 
>     (coalesce(REGEXP_REPLACE(broker_mc::numeric, '[^0-9]+', '', 'g'), 0)),
>     (coalesce(REGEXP_REPLACE(carrier_mc::numeric, '[^0-9]+', '', 'g'), 0)),
>     (coalesce(REGEXP_REPLACE(freight_forwarder_mc::numeric, '[^0-9]+', '', 'g'), 0)),
> 
> but that throws this error:
> 
> ERROR:  function regexp_replace(numeric, unknown, unknown, unknown) does not exist
> LINE 46:     (coalesce(REGEXP_REPLACE(broker_mc::numeric, '[^0-9]+', ...
>                                     ^
> HINT:  No function matches the given name and argument types. You might need to add explicit type casts.
> 
> Sam
> 
> On Wed, Oct 16, 2024 at 2:33 PM Sam Stearns <sam.stearns@dat.com <mailto:sam.stearns@dat.com>> wrote:
>> Howdy,
>> 
>> I have an Oracle view that's been converted for Postgres.  This block of code in the Oracle view DDL:
>> 
>> TO_NUMBER (NVL (REGEXP_REPLACE (broker_mc, '[^0-9]+', ''), 0)),
>> TO_NUMBER (NVL (REGEXP_REPLACE (carrier_mc, '[^0-9]+', ''), 0)),
>> TO_NUMBER (NVL (REGEXP_REPLACE (freight_forwarder_mc, '[^0-9]+', ''), 0)),
>> 
>> has been converted for Postgres as:
>> 
>> (coalesce(REGEXP_REPLACE(broker_mc, '[^0-9]+', '', 'g'), 0))::numeric ,
>> (coalesce(REGEXP_REPLACE(carrier_mc, '[^0-9]+', '', 'g'), 0))::numeric ,
>> (coalesce(REGEXP_REPLACE(freight_forwarder_mc, '[^0-9]+', '', 'g'), 0))::numeric ,
>> 
>> which is throwing the following error:
>> 
>> ERROR:  COALESCE types text and integer cannot be matched
>> LINE 43: ...ce(REGEXP_REPLACE(broker_mc, '[^0-9]+', '', 'g'), 0))::numer...
>>                                                                                                      ^
>> I have been looking through:
>> 
>> https://www.postgresql.org/docs/current/functions-conditional.html#FUNCTIONS-COALESCE-NVL-IFNULL
>> https://www.postgresql.org/docs/current/typeconv-union-case.html
>> 
>> but I'm not seeing a way to resolve it.  Would anyone be able to advise how to correct this for Postgres, please?
>> 
>> Thanks,
>> 
>> Sam
>> 
>> --
>> Samuel Stearns
>> Lead Database Administrator
>> c: 971 762 6879 | o: 503 672 5115 | DAT.com
>> 
>>  <https://www.dat.com/?utm_medium=email&utm_source=DAT_email_signature_link>
> 
> --
> Samuel Stearns
> Lead Database Administrator
> c: 971 762 6879 | o: 503 672 5115 | DAT.com
> 
>  <https://www.dat.com/?utm_medium=email&utm_source=DAT_email_signature_link>