:plugin: unique
:type: filter

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:version: %VERSION%
:release_date: %RELEASE_DATE%
:changelog_url: %CHANGELOG_URL%
:include_path: ../../../../logstash/docs/include
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[id="plugins-{type}s-{plugin}"]

=== Unique filter plugin

include::{include_path}/plugin_header.asciidoc[]

==== Description



[id="plugins-{type}s-{plugin}-options"]
==== Unique Filter Configuration Options

This plugin supports the following configuration options plus the <<plugins-{type}s-{plugin}-common-options>> described later.

[cols="<,<,<",options="header",]
|=======================================================================
|Setting |Input type|Required
| <<plugins-{type}s-{plugin}-fields>> |<<array,array>>|Yes
|=======================================================================

Also see <<plugins-{type}s-{plugin}-common-options>> for a list of options supported by all
filter plugins.

&nbsp;

[id="plugins-{type}s-{plugin}-fields"]
===== `fields`

  * This is a required setting.
  * Value type is <<array,array>>
  * There is no default value for this setting.

The fields on which to run the unique filter.



[id="plugins-{type}s-{plugin}-common-options"]
include::{include_path}/{type}.asciidoc[]