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 } } } }