NAME

RDF::Query::Plan::Aggregate - Executable query plan for Aggregates.

VERSION

This document describes RDF::Query::Plan::Aggregate version 2.200, released 6 August 2009.

new ( $pattern, \@group_by, [ $alias, $op, $attribute ], ... )
execute ( $execution_context )
next
close
pattern: Returns the query plan that will be used to produce the aggregated data.
groupby: Returns the grouping arguments that will be used to produce the aggregated data.
plan_node_name: Returns the string name of this plan node, suitable for use in serialization.
plan_prototype: Returns a list of scalar identifiers for the type of the content (children) nodes of this plan node. See RDF::Query::Plan for a list of the allowable identifiers.
plan_node_data: Returns the data for this plan node that corresponds to the values described by the signature returned by plan_prototype.
distinct: Returns true if the pattern is guaranteed to return distinct results.
ordered: Returns true if the pattern is guaranteed to return ordered results.

 Gregory Todd Williams <gwilliams@cpan.org>