Fix a bug in significant_terms (#127975) #128032
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Fix a bug in the `significant_terms` agg where the "subsetSize" array is too small because we never collect the ordinal for the agg "above" it. This mostly hits when the you do a `range` agg containing a `significant_terms` AND you only collect the first few ranges. `range` isn't particularly popular, but `date_histogram` is super popular and it rewrites into a `range` pretty commonly - so that's likely what's really hitting this - a `date_histogram` followed by a `significant_text` where the matches are all early in the date range held by the shard.
elasticsearchmachine added serverless-linked 
julio-santana added >non-issue :Analytics/Aggregations 
| Pinging @elastic/es-analytical-engine (Team:Analytics) |
elasticsearchmachine removed the needs:triage 
idegtiarenko approved these changes May 12, 2025
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Pull in #127975 as a targeted fix to the serverless-fix branch for serverless Elasticsearch