retreive all the fields in join

[Aman Tandon]

Hi,

Is there a way possible to retrieve all the fields present in both the
cores(core 1 and core2).

e.g.
core1: {id:111,name: "abc" }

core2: {page:17, type: "fiction"}

I want is that, on querying both the cores I want to retrieve the results
containing all the 4 fields, fields id, name from core1 and page, type from
core2. Is it possible?

With Regards
Aman Tandon