Hi Timo,and thanks a lot, I've disabled the FastDistinct so now everything works as expected. Your link took me to a page that describes the Group By operator and it happened so this "feature" is documented and that another option is to use the %Exact function, e.g. select distinct %Exact(value) ...

Hi Tani, in most cases the stream contains JSON. The container definition looks like:

Class MyRequest Extends (Ens.StreamContainer, %JSON.Adaptor) { }

I just want the stream content to be rendered always

I'm sorry for the false alarm. I've increased the FHIR server "Max Search Results" option value so now everything works fine.