how to read object field within json file

[Selvam Raman]

Hi,

{
"id": "test1",
"source": {
    "F1": {
      "id": "4970",
      "eId": "F1",
      "description": "test1",
    },
    "F2": {
      "id": "5070",
      "eId": "F2",
      "description": "test2",
    },
    "F3": {
      "id": "5170",
      "eId": "F3",
      "description": "test3",
    },
    "F4":{}
      etc..
      "F999":{}
}

I am having bzip json files like above format.
some json row contains two objects within source(like F1 and F2), sometime
five(F1,F2,F3,F4,F5),etc. So the final schema will contains combination of
all objects for the source field.

Now, every row will contain n number of objects but only some contains
valid records.
how can i retreive the value of "description" in "source" field.

source.F1.description - returns the result but how can i get all
description result for every row..(something like this
"source.*.description").

-- 
Selvam Raman
"லஞ்சம் தவிர்த்து நெஞ்சம் நிமிர்த்து"