Description
This query will return all documents with "solr" in the title as a query response.
The aggregations will aggregate on that entire query response to get all tags for all documents with "solr" in the title.
The second aggregation will filter that entire query response for documents with "solr" in the title and "elasticsearch" in the tags, and then aggregate to get all uploaders for the filtered subset of the query response.
Finally, post filter will filter all the documents with "solr" in the title to return only those documents with "solr" in the title and "elasticsearch" in tags.
This enables precisely the kind of behavior we see in our faceting sidebar, but without having to run multiple queries in order to exclude the "elasticsearch" filter from our facet request.
GET videosearch/_search:
{
"query": {
"bool": {
"must": {
"match": {
"title": "solr"
}
}
}
},
"size": 0,
"aggs": {
"popular_tags": {
"terms": {
"field": "tags.keyword",
"size": 5
}
},
"popular_uploaders": {
"filter": {
"term": {
"tags.keyword": "elasticsearch"
}
},
"aggs": {
"uploader_tags": {
"terms": {
"field": "uploaded_by.keyword"
}
}
}
}
},
"post_filter": {
"term": {
"tags.keyword": "elasticsearch"
}
}
}