'Highlighting' and 'fields' without stored fields

[tpoljak]

It would be really great if ES could provide 'highlighting' and 'fields' features (from the search API) without the need for each field to be stored separately (by reusing stored json _source field).

[apatrida]

+1 possibly most stored fields are less useful when you have the JSON document around to pull them from; although for analyzed fields there are reasons to have them stored for performance (a sort variation, a facet variation, etc.)

[kimchy]

Features added:

The fields feature has been there with the ability to load a field using _source., with #562, it will be automatically done.

Highlighting added with #561.