elasticsearch/docs/reference/esql/functions/mv_dedupe.asciidoc

[discrete]
[[esql-mv_dedupe]]
=== `MV_DEDUPE`
[.text-center]
image::esql/functions/signature/mv_dedupe.svg[Embedded,opts=inline]

Removes duplicates from a multivalued field. For example:

[source.merge.styled,esql]
----
include::{esql-specs}/string.csv-spec[tag=mv_dedupe]
----
[%header.monospaced.styled,format=dsv,separator=|]
|===
include::{esql-specs}/string.csv-spec[tag=mv_dedupe-result]
|===

Supported types:

include::types/mv_dedupe.asciidoc[]

NOTE: `MV_DEDUPE` may, but won't always, sort the values in the field.