NAME
RDF::Query::Plan::Union - Executable query plan for unions.
VERSION
This document describes RDF::Query::Plan::Union version 2.201, released 30 January 2010.
METHODS
new ( $lhs, $rhs )
execute ( $execution_context )
next
close
lhs
-
Returns the left-hand-side plan to the union.
rhs
-
Returns the right-hand-side plan to the union.
distinct
-
Returns true if the pattern is guaranteed to return distinct results.
ordered
-
Returns true if the pattern is guaranteed to return ordered results.
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
. graph ( $g )
AUTHOR
Gregory Todd Williams <gwilliams@cpan.org>