---
title: schema.measurementTagValues() function
description: schema.measurementTagValues() returns a list of tag values for a specific measurement.
url: https://docs.influxdata.com/flux/v0/stdlib/influxdata/influxdb/schema/measurementtagvalues/
estimated_tokens: 1165
product: Flux
version: v0
---

# schema.measurementTagValues() function

-   Flux 0.88.0+
-   View InfluxDB support

`schema.measurementTagValues()` returns a list of tag values for a specific measurement.

Results include a single table with a single column, `_value`.

##### Function type signature

```js
(
    bucket: string,
    measurement: A,
    tag: string,
    ?start: B,
    ?stop: C,
) => stream[D] where A: Equatable, D: Record
```

For more information, see [Function type signatures](/flux/v0/function-type-signatures/).

## Parameters

### bucket

(Required) Bucket to return tag values from for a specific measurement.

### measurement

(Required) Measurement to return tag values from.

### tag

(Required) Tag to return all unique values from.

### start

Oldest time to include in results. Default is `-30d`.

### stop

Newest time include in results. The stop time is exclusive, meaning values with a time equal to stop time are excluded from the results. Default is `now()`.

## Examples

### Query unique tag values from an InfluxDB measurement

```js
import "influxdata/influxdb/schema"

schema.measurementTagValues(
    bucket: "example-bucket",
    measurement: "example-measurement",
    tag: "example-tag",
)
```

#### Not supported in the Flux REPL

`schema` functions can retrieve schema information when executed within the context of InfluxDB, but not from the [Flux REPL](/influxdb/cloud/tools/repl/).

#### Related

-   [Explore your data schema with Flux](/influxdb/v2/query-data/flux/explore-schema/)
-   [SHOW TAG VALUES in InfluxQL](/influxdb/v1/query_language/explore-schema#show-tag-values)

[metadata](/flux/v0/tags/metadata/)