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A more complex example
editA more complex example
editTo demonstrate a slightly more complex query and the associated results, we can profile the following query:
GET /test/_search { "profile": true, "query": { "term": { "message": { "value": "search" } } }, "aggs": { "non_global_term": { "terms": { "field": "agg" }, "aggs": { "second_term": { "terms": { "field": "sub_agg" } } } }, "another_agg": { "cardinality": { "field": "aggB" } }, "global_agg": { "global": {}, "aggs": { "my_agg2": { "terms": { "field": "globalAgg" } } } } }, "post_filter": { "term": { "my_field": "foo" } } }
This example has:
- A query
- A scoped aggregation
- A global aggregation
- A post_filter
And the response:
{ "profile": { "shards": [ { "id": "[P6-vulHtQRWuD4YnubWb7A][test][0]", "searches": [ { "query": [ { "query_type": "TermQuery", "lucene": "my_field:foo", "time": "0.4094560000ms", "breakdown": { "score": 0, "next_doc": 0, "match": 0, "create_weight": 31584, "build_scorer": 377872, "advance": 0 } }, { "query_type": "TermQuery", "lucene": "message:search", "time": "0.3037020000ms", "breakdown": { "score": 0, "next_doc": 5936, "match": 0, "create_weight": 185215, "build_scorer": 112551, "advance": 0 } } ], "rewrite_time": 7208, "collector": [ { "name": "MultiCollector", "reason": "search_multi", "time": "1.378943000ms", "children": [ { "name": "FilteredCollector", "reason": "search_post_filter", "time": "0.4036590000ms", "children": [ { "name": "SimpleTopScoreDocCollector", "reason": "search_top_hits", "time": "0.006391000000ms" } ] }, { "name": "BucketCollector: [[non_global_term, another_agg]]", "reason": "aggregation", "time": "0.9546020000ms" } ] } ] }, { "query": [ { "query_type": "MatchAllDocsQuery", "lucene": "*:*", "time": "0.04829300000ms", "breakdown": { "score": 0, "next_doc": 3672, "match": 0, "create_weight": 6311, "build_scorer": 38310, "advance": 0 } } ], "rewrite_time": 1067, "collector": [ { "name": "GlobalAggregator: [global_agg]", "reason": "aggregation_global", "time": "0.1226310000ms" } ] } ] } ] } }
As you can see, the output is significantly verbose from before. All the major portions of the query are represented:
-
The first
TermQuery
(message:search) represents the mainterm
query -
The second
TermQuery
(my_field:foo) represents thepost_filter
query -
There is a
MatchAllDocsQuery
(*:*) query which is being executed as a second, distinct search. This was not part of the query specified by the user, but is auto-generated by the global aggregation to provide a global query scope
The Collector tree is fairly straightforward, showing how a single MultiCollector wraps a FilteredCollector to execute the post_filter (and in turn wraps the normal scoring SimpleCollector), a BucketCollector to run all scoped aggregations. In the MatchAll search, there is a single GlobalAggregator to run the global aggregation.