1RDF::Query::Algebra::UnUisoenr(3C)ontributed Perl DocumeRnDtFa:t:iQounery::Algebra::Union(3)
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6 RDF::Query::Algebra::Union - Algebra class for Union patterns
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9 This document describes RDF::Query::Algebra::Union version 2.918.
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12 Beyond the methods documented below, this class inherits methods from
13 the RDF::Query::Algebra class.
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15 "new ( $left, $right )"
16 Returns a new Union structure.
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18 "construct_args"
19 Returns a list of arguments that, passed to this class'
20 constructor, will produce a clone of this algebra pattern.
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22 "first"
23 Returns the first pattern (LHS) of the union.
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25 "second"
26 Returns the second pattern (RHS) of the union.
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28 "patterns"
29 Returns the two patterns belonging to the UNION pattern.
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31 "sse"
32 Returns the SSE string for this algebra expression.
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34 "as_sparql"
35 Returns the SPARQL string for this algebra expression.
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37 "as_hash"
38 Returns the query as a nested set of plain data structures (no
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41 "type"
42 Returns the type of this algebra expression.
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44 "referenced_variables"
45 Returns a list of the variable names used in this algebra
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48 "potentially_bound"
49 Returns a list of the variable names used in this algebra
50 expression that will bind values during execution.
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52 "definite_variables"
53 Returns a list of the variable names that will be bound after
54 evaluating this algebra expression.
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57 Gregory Todd Williams <gwilliams@cpan.org>
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61perl v5.36.0 2023-01-20 RDF::Query::Algebra::Union(3)