Package se.liu.ida.hefquin.engine.queryplan.logical.impl
package se.liu.ida.hefquin.engine.queryplan.logical.impl
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ClassesClassDescriptionA logical operator that returns a given solution mapping.This operator has three arguments: i) a SPARQL graph pattern P (given in the form of a
SPARQLRequest, ii) a variable ?A multiway left join corresponds to a sequence of SPARQL OPTIONAL clauses.This class represents a logical plan that produces the empty result.