NOTE: You are looking at documentation for an older release. 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
edita => a
.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 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.
{
"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"
}
}
}
}
}