docs-v2/content/flux/v0.x/stdlib/universe/bottom.md

title	description	aliases	menu	weight	flux/v0.x/tags	related	introduced
bottom() function	The `bottom()` function sorts a table by columns and keeps only the bottom n records.	/influxdb/v2.0/reference/flux/functions/transformations/selectors/bottom /influxdb/v2.0/reference/flux/functions/built-in/transformations/selectors/bottom/ /influxdb/v2.0/reference/flux/stdlib/built-in/transformations/selectors/bottom/ /influxdb/cloud/reference/flux/stdlib/built-in/transformations/selectors/bottom/	flux_0_x_ref name parent bottom universe	102	selectors transformations	/{{< latest "influxdb" "v1" >}}/query_language/functions/#bottom, InfluxQL – BOTTOM()	0.7.0

The bottom() function sorts a table by columns and keeps only the bottom n records. bottom() is a selector function.

bottom(n:10, columns: ["_value"])

{{% warn %}}

Empty tables

bottom() drops empty tables. {{% /warn %}}

Parameters

n

Number of records to return.

columns

List of columns by which to sort. Sort precedence is determined by list order (left to right). Default is ["_value"].

tables

Input data. Default is piped-forward data (<-).

Examples

{{% flux/sample-example-intro %}}

Return rows with the two lowest values

import "sampledata"

sampledata.int()
    |> bottom(n:2)

{{< expand-wrapper >}} {{% expand "View input and output" %}} {{< flex >}} {{% flex-content %}}

Input data

{{% flux/sample set="int" %}}

{{% /flex-content %}} {{% flex-content %}}

Output data

_time	tag	_value
2021-01-01T00:00:00Z	t1	-2
2021-01-01T00:00:50Z	t1	4

_time	tag	_value
2021-01-01T00:00:20Z	t2	-3
2021-01-01T00:00:50Z	t2	1

{{% /flex-content %}} {{< /flex >}} {{% /expand %}} {{< /expand-wrapper >}}