Unfortunately, I don't believe you can do a sub-aggregation on a
single-value metric at the moment. For now, you'll probably have to index
the actual (min) values and then aggregate on them.
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Hey folks,
Playing around with the aggregation API, I was wondering whether this is
possible. Taking the example
at
http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/search-aggregations-bucket-nested-aggregation.html
, how would I get the histogram of the minimum price