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

[discrete]
[[esql-mv_count]]
=== `MV_COUNT`

*Syntax*

[.text-center]
image::esql/functions/signature/mv_count.svg[Embedded,opts=inline]

*Parameters*

`v`::
Multivalue expression.

*Description*

Converts a multivalued expression into a single valued column containing a count
of the number of values.

*Supported types*

include::types/mv_count.asciidoc[]

*Example*

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