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docs-v2/content/flux/v0.x/stdlib/influxdata/influxdb/v1/measurementfieldkeys.md

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title description menu weight flux/v0.x/tags aliases related introduced deprecated
v1.measurementFieldKeys() function The `v1.measurementFieldKeys()` function returns a list of fields in a measurement.
flux_0_x_ref
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v1.measurementFieldKeys v1
301
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/influxdb/v2.0/reference/flux/functions/influxdb-v1/measurementfieldkeys/
/influxdb/v2.0/reference/flux/stdlib/influxdb-v1/measurementfieldkeys/
/influxdb/cloud/reference/flux/stdlib/influxdb-v1/measurementfieldkeys/
/{{< latest "influxdb" >}}/query-data/flux/explore-schema/
/{{< latest "influxdb" "v1" >}}/query_language/explore-schema#show-field-keys, SHOW FIELD KEYS in InfluxQL
0.68.0 0.88.0

{{% warn %}} v1.measurementFieldKeys() was deprecated in Flux v0.88.0 in favor of schema.measurementFieldKeys(). {{% /warn %}}

The v1.measurementFieldKeys() function returns a list of fields in a measurement. The return value is always a single table with a single column, _value.

import "influxdata/influxdb/v1"

v1.measurementFieldKeys(
    bucket: "example-bucket",
    measurement: "example-measurement",
    start: -30d,
)

Parameters

bucket

Bucket to retrieve field keys from.

measurement

Measurement to list field keys from.

start

Oldest time to include in results. Defaults to -30d.

Relative start times are defined using negative durations. Negative durations are relative to now. Absolute start times are defined using time values.

Examples

import "influxdata/influxdb/v1"

v1.measurementFieldKeys(bucket: "telegraf", measurement: "cpu")