org.apache.spark.sql

expressions

package expressions

Visibility
  1. Public
  2. All

Type Members

  1. abstract class Aggregator[-I, B, O] extends Serializable

    A base class for user-defined aggregations, which can be used in DataFrame and Dataset operations to take all of the elements of a group and reduce them to a single value.

  2. abstract class MutableAggregationBuffer extends Row

    :: Experimental :: A Row representing an mutable aggregation buffer.

  3. abstract class UserDefinedAggregateFunction extends Serializable

    :: Experimental :: The base class for implementing user-defined aggregate functions (UDAF).

  4. class Window extends AnyRef

    :: Experimental :: Utility functions for defining window in DataFrames.

  5. class WindowSpec extends AnyRef

    :: Experimental :: A window specification that defines the partitioning, ordering, and frame boundaries.

Value Members

  1. object Window

    :: Experimental :: Utility functions for defining window in DataFrames.

Ungrouped