Query for value in object - elasticsearch

Question

I have multiple documents like:
{
labels: {
label1Key: "label1Value",
label2Key: "label2Value",
...
},
...
}
The keys of the labels object are arbitrary. I would like to query for the existence of specific values in the labels object without knowing the key, e.g. I want all data that contain label2Value as a value in the labels object.
I've tried to solve this via an exists query, but this way I can only access the key of an object. Is there a way to query for values?

Answer 1

With a Multimatch query you can use wildcards on the field names
Ingest data
POST test_bene/_doc
{
"labels": {
"label1Key": "label1Value",
"label2Key": "label2Value"
}
}
Query
POST test_bene/_search
{
"query": {
"multi_match": {
"query": "label1Value",
"fields": ["labels.*"]
}
}
}
Response
{
"took" : 24,
"timed_out" : false,
"_shards" : {
"total" : 1,
"successful" : 1,
"skipped" : 0,
"failed" : 0
},
"hits" : {
"total" : {
"value" : 1,
"relation" : "eq"
},
"max_score" : 0.2876821,
"hits" : [
{
"_index" : "test_bene",
"_type" : "_doc",
"_id" : "RtBd_ncB46EpgstaHy3Y",
"_score" : 0.2876821,
"_source" : {
"labels" : {
"label1Key" : "label1Value",
"label2Key" : "label2Value"
}
}
}
]
}
}