f5fbb3eb8b
Previous to this change the nesting of aggregation profiling results would be incorrect when the request contains a terms aggregation and the collect mode is (implicitly or explicitly) set to `breadth_first`. This was because the aggregation profiling has to make the assumption that the `preCollection()` method of children aggregations is always called in the `preCollection()` method of their parent aggregation. When the collect mode is `breadth_first` the `preCollection` of the children aggregations was delayed until the documents were replayed. This change moves the `preCollection()` of deferred aggregations to run during the `preCollection()` of the parent aggregation. This should have no adverse impact on the breadth_first mode as there is no allocation of memory in any of the aggregations. We also apply the same logic to the diversified sampler aggregation as we did to the terms aggregation to move the `preCollection()` of the child aggregations method to be called during the `preCollection()` of the parent aggregation. This commit also includes a fix so that the `ProfilingLeafBucketCollector` propagates the scorer to its delegate so the diversified sampler agg works when profiling is enabled. |
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