JDBC Adapters: Select output


I’m having a problem with the output of Select Adapter service.
I’ve set up a JDBC connection and then created a Adapter service, in the output of the service, you have a document with the name AdapterServiceNameOutput, as usual. Under than you have a document list called results, as usual. What is strange is that the results document list is an array, I believe, because it has [] after his name.
When trying to map the values of the result, it doesn’t do it.
Question: how to male a normal document list of results or how to map an document list array?

any help is welcome!!