Functions.CountDistinct Method

Definition

Namespace:

Microsoft.Spark.Sql

Assembly:

Microsoft.Spark.dll

Package:

Microsoft.Spark v1.0.0

Overloads

CountDistinct(Column, Column[])	Returns the number of distinct items in a group.
CountDistinct(String, String[])	Returns the number of distinct items in a group.

CountDistinct(Column, Column[])

Returns the number of distinct items in a group.

public static Microsoft.Spark.Sql.Column CountDistinct (Microsoft.Spark.Sql.Column column, params Microsoft.Spark.Sql.Column[] columns);

static member CountDistinct : Microsoft.Spark.Sql.Column * Microsoft.Spark.Sql.Column[] -> Microsoft.Spark.Sql.Column

Public Shared Function CountDistinct (column As Column, ParamArray columns As Column()) As Column

Parameters

column

Column

Column to apply

columns

Column[]

Additional columns to apply

Returns

Column

Column object

CountDistinct(String, String[])

Returns the number of distinct items in a group.

public static Microsoft.Spark.Sql.Column CountDistinct (string columnName, params string[] columnNames);

static member CountDistinct : string * string[] -> Microsoft.Spark.Sql.Column

Public Shared Function CountDistinct (columnName As String, ParamArray columnNames As String()) As Column

Parameters

columnName

String

Column name

columnNames

String[]

Additional column names

Returns

Column

Column object