a29d3515a2
This makes a `parentCardinality` available to every `Aggregator`'s ctor so it can make intelligent choices about how it collects bucket values. This replaces `collectsFromSingleBucket` and is similar to it but: 1. It supports `NONE`, `ONE`, and `MANY` values and is generally extensible if we decide we can use more precise counts. 2. It is more accurate. `collectsFromSingleBucket` assumed that all sub-aggregations live under multi-bucket aggregations. This is normally true but `parentCardinality` is properly carried forward for single bucket aggregations like `filter` and for multi-bucket aggregations configured in single-bucket for like `range` with a single range. While I was touching every aggregation I renamed `doCreateInternal` to `createMapped` because that seemed like a much better name and it was right there, next to the change I was already making. Relates to #56487 Co-authored-by: Elastic Machine <elasticmachine@users.noreply.github.com> |
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