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Use a Painless script to reduce values to produce the result of a scripted metric aggregation. A reduce script is run once on the coordinating node following a combine script (or a map script if no combine script is specified) and is optional as part of a full metric aggregation.
- User-defined parameters passed in as part of the query.
Mapwith values available from the prior combine script (or a map script if no combine script is specified).
String, or primitive
- A value used as the result.
The standard Painless API is available.