NewAggregation creates a new aggregation from a seralized representation.

NewJoin creates a new join from a seralized representation.

NewPipeline creates a new pipeline from the set of base objects and a seralized pipeline that writes into a given target.

NewStage creates a new stage from a single aggregation stage.

Aggregation is an operation that can be used to process, objects, or alter the shape of a list of objects in a view.

Join is an operation that can be used to perform an inner Join on a list of views.

Pipeline is query that knows how to evaluate itself.

Stage is a single operation in an aggregation.

Evaluator is a query that knows how to evaluate itself on a given delta and how to print itself.