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_uid field
edit_uid field
editEach document indexed is associated with a _type (see
Mapping Types) and an _id. These values are
combined as {type}#{id} and indexed as the _uid field.
The value of the _uid field is accessible in queries, aggregations, scripts,
and when sorting:
# Example documents
PUT my_index/my_type/1
{
"text": "Document with ID 1"
}
PUT my_index/my_type/2
{
"text": "Document with ID 2"
}
GET my_index/_search
{
"query": {
"terms": {
"_uid": [ "my_type#1", "my_type#2" ]
}
},
"aggs": {
"UIDs": {
"terms": {
"field": "_uid",
"size": 10
}
}
},
"sort": [
{
"_uid": {
"order": "desc"
}
}
],
"script_fields": {
"UID": {
"script": "doc['_uid']"
}
}
}