elasticsearch/docs/reference/esql/functions/mv_concat.asciidoc
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[DOCS] Improve ES|QL functions reference for functions E-Z (#104623)
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Co-authored-by: Liam Thompson <32779855+leemthompo@users.noreply.github.com>
Co-authored-by: Alexander Spies <alexander.spies@elastic.co>
Co-authored-by: Elastic Machine <elasticmachine@users.noreply.github.com>
2024-01-25 16:32:24 +01:00

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[discrete]
[[esql-mv_concat]]
=== `MV_CONCAT`
*Syntax*
[.text-center]
image::esql/functions/signature/mv_concat.svg[Embedded,opts=inline]
*Parameters*
`v`::
Multivalue expression.
`delim`::
Delimiter.
*Description*
Converts a multivalued string expression into a single valued column containing
the concatenation of all values separated by a delimiter.
*Supported types*
include::types/mv_concat.asciidoc[]
*Examples*
[source.merge.styled,esql]
----
include::{esql-specs}/string.csv-spec[tag=mv_concat]
----
[%header.monospaced.styled,format=dsv,separator=|]
|===
include::{esql-specs}/string.csv-spec[tag=mv_concat-result]
|===
To concat non-string columns, call <<esql-to_string>> first:
[source.merge.styled,esql]
----
include::{esql-specs}/string.csv-spec[tag=mv_concat-to_string]
----
[%header.monospaced.styled,format=dsv,separator=|]
|===
include::{esql-specs}/string.csv-spec[tag=mv_concat-to_string-result]
|===