WARNING: Version 5.x has passed its EOL date.
This documentation is no longer being maintained and may be removed. If you are running this version, we strongly advise you to upgrade. For the latest information, see the current release documentation.
Children Aggregation Usage
editChildren Aggregation Usage
editA special single bucket aggregation that enables aggregating from buckets on parent document types to buckets on child documents.
Be sure to read the Elasticsearch documentation on Children Aggregation
Fluent DSL example
edits => s
.Aggregations(aggs => aggs
.Children<CommitActivity>("name_of_child_agg", child => child
.Aggregations(childAggs => childAggs
.Average("average_per_child", avg => avg.Field(p => p.ConfidenceFactor))
.Max("max_per_child", avg => avg.Field(p => p.ConfidenceFactor))
.Min("min_per_child", avg => avg.Field(p => p.ConfidenceFactor))
)
)
)
Object Initializer syntax example
editnew SearchRequest<Project>
{
Aggregations = new ChildrenAggregation("name_of_child_agg", typeof(CommitActivity))
{
Aggregations =
new AverageAggregation("average_per_child", "confidenceFactor")
&& new MaxAggregation("max_per_child", "confidenceFactor")
&& new MinAggregation("min_per_child", "confidenceFactor")
}
}
Example json output.
{
"aggs": {
"name_of_child_agg": {
"children": {
"type": "commits"
},
"aggs": {
"average_per_child": {
"avg": {
"field": "confidenceFactor"
}
},
"max_per_child": {
"max": {
"field": "confidenceFactor"
}
},
"min_per_child": {
"min": {
"field": "confidenceFactor"
}
}
}
}
}
}