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Metric aggregation reduce context
editMetric aggregation reduce context
editUse 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.
Variables
-
params
(Map
, read-only) - User-defined parameters passed in as part of the query.
-
states
(Map
) -
Map
with values available from the prior combine script (or a map script if no combine script is specified).
Return
-
List
,Map
,String
, or primitive - A value used as the result.
API
The standard Painless API is available.