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How to use script aggregation in elasticsearch script aggregation?


Asked by Rosie Shepard on Nov 28, 2021 FAQ



A metric aggregation that executes using scripts to provide a metric output. init_script is an optional parameter, all other scripts are required. The above aggregation demonstrates how one would use the script aggregation compute the total profit from sale and cost transactions. The response for the above aggregation:
In fact,
And there is no any method to access script fields by aggregations. See explanation. I digged into Elasticsearch implementation code, Here is Javadoc for, ValuesSourceAggregationBuilder#script()used by Terms aggregation for scripting . Sets the script which generates the values.
Also Know, I digged into Elasticsearch implementation code, Here is Javadoc for, ValuesSourceAggregationBuilder#script()used by Terms aggregation for scripting . Sets the script which generates the values. If the script is configured along with the field (as in {@link #field(String)}), then * this script will be treated as a {@code value script}.
One may also ask,
Elasticsearch organizes aggregations into three categories: Metric aggregations that calculate metrics, such as a sum or average, from field values. Bucket aggregations that group documents into buckets, also called bins, based on field values, ranges, or other criteria.
Subsequently,
A bucket_script aggregation looks like this in isolation: Here, my_var1 is the name of the variable for this buckets path to use in the script, the_sum is the path to the metrics to use for that variable. The script to run for this aggregation. The script can be inline, file or indexed. (see Scripting for more details)