Elasticsearch - Unique values in a field of an index -


i have index of following type: 

{   company: {     watchlist: [ {id: 1}, {id: 2}, {id, 1} ]   } }

in watchlist array in indexes, duplicate values stored. want indexes not store duplicate values increasing size of index.

i know can unique values calling aggregation, want here store unique values in index.

i using elasticsearch rails here, indexes data according json returned 'as_indexed_json' method. data above index in sql database, cannot change. can create indexes database, need 'uniqueness' constraint on field 'watchlist'.

is there way it?


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