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

navigation_title	mapped_pages
Remove	https://www.elastic.co/guide/en/elasticsearch/reference/current/remove-processor.html

Remove processor [remove-processor]

Removes existing fields. If one field doesn’t exist, an exception will be thrown.

$$$remove-options$

Name	Required	Default	Description
field	yes	-	Fields to be removed. Supports template snippets.
ignore_missing	no	false	If true and field does not exist or is null, the processor quietly exits without modifying the document
keep	no	-	Fields to be kept. When set, all fields other than those specified are removed.
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.

Here is an example to remove a single field:

{
  "remove": {
    "field": "user_agent"
  }
}

To remove multiple fields, you can use the following query:

{
  "remove": {
    "field": ["user_agent", "url"]
  }
}

You can also choose to remove all fields other than a specified list:

{
  "remove": {
    "keep": ["url"]
  }
}