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% This is generated by ESQL's AbstractFunctionTestCase. Do not edit it. See ../README.md for how to regenerate it.
**Description**
Returns unique values as a multivalued field. The order of the returned values isn’t guaranteed. If you need the values returned in order use [`MV_SORT`](/reference/query-languages/esql/functions-operators/mv-functions.md#esql-mv_sort).