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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.

Table 43. 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"
  }
}

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https://www.elastic.co/guide/en/elasticsearch/reference/8.17/sort-processor.html