elasticsearch/docs/reference/enrich-processor/sort-processor.md

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Sort	https://www.elastic.co/guide/en/elasticsearch/reference/current/sort-processor.html

Sort processor [sort-processor]

Sorts the elements of an array ascending or descending. Homogeneous arrays of numbers will be sorted numerically, while arrays of strings or heterogeneous arrays of strings + numbers will be sorted lexicographically. Throws an error when the field is not an array.

$sort-options

Name	Required	Default	Description
field	yes	-	The field to be sorted
order	no	"asc"	The sort order to use. Accepts "asc" or "desc".
target_field	no	field	The field to assign the sorted value to, by default field is updated in-place
description	no	-	Description of the processor. Useful for describing the purpose of the processor or its configuration.
if	no	-	Conditionally execute the processor. See Conditionally run a processor.
ignore_failure	no	false	Ignore failures for the processor. See Handling pipeline failures.
on_failure	no	-	Handle failures for the processor. See Handling pipeline failures.
tag	no	-	Identifier for the processor. Useful for debugging and metrics.

{
  "sort": {
    "field": "array_field_to_sort",
    "order": "desc"
  }
}