IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Aggregation Metadata
editAggregation Metadata
editYou can associate a piece of metadata with individual aggregations at request time that will be returned in place at response time.
Consider this example where we want to associate the color blue with our terms
aggregation.
GET /twitter/_search { "size": 0, "aggs": { "titles": { "terms": { "field": "title" }, "meta": { "color": "blue" } } } }
Then that piece of metadata will be returned in place for our titles
terms aggregation
{ "aggregations": { "titles": { "meta": { "color" : "blue" }, "doc_count_error_upper_bound" : 0, "sum_other_doc_count" : 0, "buckets": [ ] } }, ... }