Stats bucket aggregation

Stats bucket aggregation #

A sibling pipeline aggregation returning count/min/max/avg/sum of a metric across buckets — the stats of the per-bucket values. One call replaces four: where avg_bucket, min_bucket and max_bucket each reduce the bucket list to a single number, stats_bucket returns the whole summary object beside the aggregation it describes.

"day_stats": { "stats_bucket": { "buckets_path": "per_day>revenue" } }

How it works #

stats_bucket is declared next to the bucket aggregation it consumes and runs after every regular aggregation — including the distributed merge — has finished. It walks the parent’s finished buckets, collects one number per bucket, and emits the stats result object over that sample: