diff --git a/docs/reference/aggregations/bucket/composite-aggregation.asciidoc b/docs/reference/aggregations/bucket/composite-aggregation.asciidoc index 60e26096a7cf0..e74c4904ccdb1 100644 --- a/docs/reference/aggregations/bucket/composite-aggregation.asciidoc +++ b/docs/reference/aggregations/bucket/composite-aggregation.asciidoc @@ -4,6 +4,9 @@ Composite ++++ +WARNING: The composite aggregation is expensive. Load test your application +before deploying a composite aggregation in production. + A multi-bucket aggregation that creates composite buckets from different sources. Unlike the other `multi-bucket` aggregations, you can use the `composite`