package aggregation
Type Members
-
case class
BitmapAggregator(child: Expression, mutableAggBufferOffset: Int, inputAggBufferOffset: Int, serializationFormatString: String) extends TypedImperativeAggregate[RoaringBitmapArray] with ImplicitCastInputTypes with UnaryLike[Expression] with Product with Serializable
This function returns a bitmap representing the set of values of the underlying column.
This function returns a bitmap representing the set of values of the underlying column.
The bitmap is simply a compressed representation of the set of all integral values that appear in the column being aggregated over.
- child
child expression that can produce a column value with
child.eval(inputRow)