How to use 'exists' filter on no indexed objects/fields

[Han JU]

Hi, I have some object type like:

  {
    'person': {
       'properties': {
          'age': {'index': 'no', 'type': 'long'},
          'name': {'index': 'no', 'type': 'string'}
       }
     }
  }

So in fact these fields are not indexed at all, they are not visible to 
filters. But what I want to is to be able to use 'exists' and 'missing' 
filters on these fields ('person', 'person.age' or 'person.name').
A simple hack is to add an indexed, boolean field for each no index field, 
like:

{
    'person': {
       'properties': {
          'age': {'index': 'no', 'type': 'long'},
          'age_exists': {'type': 'boolean'},

          'name': {'index': 'no', 'type': 'string'}
          'name_exists': {'index': 'no', 'type': 'boolean'}
       }
     }
  }

And modify my queries that check field existence on these boolean flag 
fields. 
This works for a few fields like this but now I have plenty of them and it 
also complicates my query logic. So dear elasticsearch users, is there a 
better solution to this?


Thanks. 

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