The metric aggregation has been changed to require these two script parameters to ensure users areĮxplicitly defining how their data is processed. Make metric aggregation script parameters reduce_script and combine_script mandatory edit The object used to share aggregation state between the scripts in a Scripted MetricĪggregation is now a variable called state available in the script context, rather thanīeing provided via the params object as params._agg. Replaced params._agg with state context variable in scripted metric aggregations edit The missing option of the composite aggregation, deprecated in 6.x, missing option of the composite aggregation has been removed edit Requests that try to return more than the limit will fail with an exception. To 10,000 (instead of unlimited in the previous version). The dynamic cluster setting named search.max_buckets now defaults search.max_buckets in the cluster setting edit These execution_hint are removed and should be replaced by global_ordinals. Aggregations changes edit Deprecated global_ordinals_hash and global_ordinals_low_cardinality execution hints for terms aggregations have been removed edit Indices created in Elasticsearch 5.x or before will need to be reindexed withĮlasticsearch 6.x in order to be readable by Elasticsearch 7.x. Reindex indices from Elasticsearch 5.x or before
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