IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Filter Aggregation
editFilter Aggregation
editDefines a single bucket of all the documents in the current document set context that match a specified filter. Often this will be used to narrow down the current aggregation context to a specific set of documents.
Example:
POST /sales/_search?size=0 { "aggs": { "t_shirts": { "filter": { "term": { "type": "t-shirt" } }, "aggs": { "avg_price": { "avg": { "field": "price" } } } } } }
In the above example, we calculate the average price of all the products that are of type t-shirt.
Response:
{ ... "aggregations": { "t_shirts": { "doc_count": 3, "avg_price": { "value": 128.33333333333334 } } } }