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Querying or accessing metadataedit
If you need to query on metadata fields, use the attachment field name dot the metadata field. For example:
PUT /test
PUT /test/person/_mapping
{
"person": {
"properties": {
"file": {
"type": "attachment",
"fields": {
"content_type": {
"type": "text",
"store": true
}
}
}
}
}
}
PUT /test/person/1?refresh=true
{
"file": "IkdvZCBTYXZlIHRoZSBRdWVlbiIgKGFsdGVybmF0aXZlbHkgIkdvZCBTYXZlIHRoZSBLaW5nIg=="
}
GET /test/person/_search
{
"stored_fields": [ "file.content_type" ],
"query": {
"match": {
"file.content_type": "text plain"
}
}
}Will give you:
{
"took": 2,
"timed_out": false,
"_shards": {
"total": 5,
"successful": 5,
"failed": 0
},
"hits": {
"total": 1,
"max_score": 0.53484553,
"hits": [
{
"_index": "test",
"_type": "person",
"_id": "1",
"_score": 0.53484553,
"fields": {
"file.content_type": [
"text/plain; charset=ISO-8859-1"
]
}
}
]
}
}