I know that - just wanted to show how I found out
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>Nothing prevents you from using a field alias in your example.
>
>>I know that 'construct' since I use it like in
>>

>>select product ,;
>>      sum(realcost) ;  && no field name given
>>   from ... ;
>>   into array aa ;
>>   group by 1 ;
>>   having ( sum(realcost) > 222 )
>>