October 2019
Beginner
186 pages
5h 39m
English
Content preview from Elasticsearch 7 Quick Start Guide
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Bucket selector aggregation
This parent pipeline aggregation executes a script that decides whether a bucket will stay in the parent multi-bucket aggregation. It has the following syntax:
{ "bucket_selector": { "buckets_path": { "my_var1": "the_sum", "my_var2": "the_value_count" }, "script": "params.my_var1 / params.my_var2" }}
It takes the following parameters:
- script: The script to be run on the aggregation
- buckets_path: The map of script variables and the associated bucket paths
- gap_policy: The policy to be taken when there are gaps in the database
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