unique() function

unique() returns all records containing unique values in a specified column.

Group keys, columns, and values are not modified. unique() drops empty tables.

Function type signature
(<-tables: stream[A], ?column: string) => stream[A] where A: Record
For more information, see Function type signatures.



Column to search for unique values. Default is _value.


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


Return unique values from input tables

import "sampledata"
    |> unique()

View example input and output

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