Multiple properties in facet (elasticsearch) - elasticsearch

Question

I have following index:
curl -XPUT "http://localhost:9200/test/" -d '
{
"mappings": {
"files": {
"properties": {
"name": {
"type": "string",
"index": "not_analyzed"
},
"owners": {
"type": "nested",
"properties": {
"name": {
"type":"string",
"index":"not_analyzed"
},
"mail": {
"type":"string",
"index":"not_analyzed"
}
}
}
}
}
}
}
'
With sample documents:
curl -XPUT "http://localhost:9200/test/files/1" -d '
{
"name": "first.jpg",
"owners": [
{
"name": "John Smith",
"mail": "js#example.com"
},
{
"name": "Joe Smith",
"mail": "joes#example.com"
}
]
}
'
curl -XPUT "http://localhost:9200/test/files/2" -d '
{
"name": "second.jpg",
"owners": [
{
"name": "John Smith",
"mail": "js#example.com"
},
{
"name": "Ann Smith",
"mail": "as#example.com"
}
]
}
'
curl -XPUT "http://localhost:9200/test/files/3" -d '
{
"name": "third.jpg",
"owners": [
{
"name": "Kate Foo",
"mail": "kf#example.com"
}
]
}
'
And I need to find all owners that match some query, let's say "mit":
curl -XGET "http://localhost:9200/test/files/_search" -d '
{
"facets": {
"owners": {
"terms": {
"field": "owners.name"
},
"facet_filter": {
"query": {
"query_string": {
"query": "*mit*",
"default_field": "owners.name"
}
}
},
"nested": "owners"
}
}
}
'
This gives me following result:
{
"facets" : {
"owners" : {
"missing" : 0,
"_type" : "terms",
"other" : 0,
"total" : 4,
"terms" : [
{
"count" : 2,
"term" : "John Smith"
},
{
"count" : 1,
"term" : "Joe Smith"
},
{
"count" : 1,
"term" : "Ann Smith"
}
]
}
},
"timed_out" : false,
"hits" : {...}
}
And it's ok.
But what I exaclty need is to get owners with their email addresses (for each entry in facet I need additional field in results).
Is it achievable?

Answer 1

Not possible i think? Depending on your needs I would have
Create a composite field with both name & email and do the facet on that field, or
Run the query in addition to the facet and extract it from the query-result, but this is obviously not scalable
Two step-operation, get the facet, build the needed queries and merge results.