experimental.unique() function
experimental.unique() is subject to change at any time.
experimental.unique() returns all records containing unique values in the _value column.
null is considered a unique value.
Function behavior
- Outputs a single table for each input table.
- Outputs a single record for each unique value in an input table.
- Leaves group keys, columns, and values unmodified.
- Drops empty tables.
Function type signature
(<-tables: stream[{A with _value: B}]) => stream[{A with _value: B}]
For more information, see Function type signatures.
Parameters
tables
Input data. Default is piped-forward data (<-).
Examples
Return rows with unique values in each input table
import "experimental"
import "sampledata"
sampledata.int(includeNull: true)
|> experimental.unique()
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