Processors - Sort - 《Elasticsearch v7.9 Reference》

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.

Table 34. 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
`if`	no	-	Conditionally execute this processor.
`on_failure`	no	-	Handle failures for this processor. See Handling Failures in Pipelines.
`ignore_failure`	no	`false`	Ignore failures for this processor. See Handling Failures in Pipelines.
`tag`	no	-	An identifier for this processor. Useful for debugging and metrics.

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