objectPartial extends AggregateMode with Product with Serializable
An AggregateFunction with Partial mode is used for partial aggregation.
This function updates the given aggregation buffer with the original input of this
function. When it has processed all input rows, the aggregation buffer is returned.
An AggregateFunction with Partial mode is used for partial aggregation. This function updates the given aggregation buffer with the original input of this function. When it has processed all input rows, the aggregation buffer is returned.