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

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[discrete]
[[esql-agg-sum]]
=== `SUM`
*Syntax*
[source,esql]
----
SUM(expression)
----
`expression`::
Numeric expression.
*Description*
Returns the sum of a numeric expression.
*Example*
[source.merge.styled,esql]
----
include::{esql-specs}/stats.csv-spec[tag=sum]
----
[%header.monospaced.styled,format=dsv,separator=|]
|===
include::{esql-specs}/stats.csv-spec[tag=sum-result]
|===
The expression can use inline functions. For example, to calculate
the sum of each employee's maximum salary changes, apply the
`MV_MAX` function to each row and then sum the results:
[source.merge.styled,esql]
----
include::{esql-specs}/stats.csv-spec[tag=docsStatsSumNestedExpression]
----
[%header.monospaced.styled,format=dsv,separator=|]
|===
include::{esql-specs}/stats.csv-spec[tag=docsStatsSumNestedExpression-result]
|===