Can some one help in understanding the nested objects and join flag
mentioned in below link
http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/query-dsl-nested-filter.html
my understanding from tests I did is that entire nested object will be
returned if root document qualifies or nested document qualifies.
Is it possible to just get the nested objected for the queries that just
qualifies nested object?
Is is possible to just get the root object for the queries that just
qualifies root object?
what is the exact use of join mentioned in above link ?
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