# MV_DEDUPE

Removes duplicate values from a multivalued field.

**Note:** `MV_DEDUPE` may, but won’t always, sort the values in the column.

## Syntax

`MV_DEDUPE(field)`

### Parameters

#### `field`

A multivalue expression.

## Examples

```esql
ROW a=["foo", "foo", "bar", "foo"]
| EVAL dedupe_a = MV_DEDUPE(a)
```

This example removes duplicate values from the multivalued column `a`.
