Postgres query into Omnis question

Steve Finger steve at srptech.com
Tue Mar 28 16:13:29 EDT 2017


Hi Alex,

Tried your suggestion with both null and the ‘ ‘ and got the same result.

Thanks for the idea though.

Steve


> On Mar 28, 2017, at 4:04 PM, Alex Clay <aclay at mac.com> wrote:
> 
> Hi Steve,
> 
> You might try casting the NULL to a 2000-length varchar:
> 
> select order_number, order_comments
> from order_forecast
> UNION
> select order_number, null::varchar(2000) as order_comments
> from orders
> 
> Alex
> 
>> On Mar 28, 2017, at 15:52, Steve Finger <steve at srptech.com> wrote:
>> 
>> Hi,
>> 
>> I’m using Studio 6.1.3 to do a query to Postgres. To simplify, here is an example of what I’m trying to do:
>> 
>> select order_number, order_comments
>> from order_forecast
>> UNION
>> select order_number, null as order_comments
>> from orders
>> 
>> 
>> Then I fetch the result into an undefined Omnis list. Currently only the orders table has values.
>> 
>> The problem is what Omnis brings back into the list. The order_comments column doesn’t have a length. So in an Omnis window which has a complex grid to display and enter values into the order_comments field, nothing can be typed in.
>> 
>> If I change null to ‘ ‘ (1 space) in the query then the column is defined with a length of 1.
>> 
>> The database table is set to 2000 characters.
>> 
>> How can I modify the query so Omnis knows that the length of the column that is returned from the query should allow 2000 characters? Or am I going to have to redefine the list in Omnis?
>> 
>> Thanks,
>> Steve Finger
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